Home / 3,138,658.60-4,707,987.90-2,949,701.80

Finding the Fourth Proportional to 3,138,658.60, 4,707,987.90 and 2,949,701.80

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Solution

The fourth proportional to 3,138,658.60, 4,707,987.90 and 2,949,701.80 is: 4,424,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,658.60 : 4,707,987.90 = 2,949,701.80 : x
  2. Step 2: Convert to fraction form
    3,138,658.60/4,707,987.90 = 2,949,701.80/x
  3. Step 3: Cross multiply
    3,138,658.60x = 4,707,987.90 × 2,949,701.80
  4. Step 4: Simplify right side
    3,138,658.60x = 13,887,160,383,008.22
  5. Step 5: Solve for x
    x = 13,887,160,383,008.22/3,138,658.60
  6. Step 6: Final answer
    x = 4,424,552.70

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.