Home / 2,781.18-4,151.48-2,575.62

Finding the Fourth Proportional to 2,781.18, 4,151.48 and 2,575.62

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Solution

The fourth proportional to 2,781.18, 4,151.48 and 2,575.62 is: 3,844.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.18 : 4,151.48 = 2,575.62 : x
  2. Step 2: Convert to fraction form
    2,781.18/4,151.48 = 2,575.62/x
  3. Step 3: Cross multiply
    2,781.18x = 4,151.48 × 2,575.62
  4. Step 4: Simplify right side
    2,781.18x = 10,692,622.04
  5. Step 5: Solve for x
    x = 10,692,622.04/2,781.18
  6. Step 6: Final answer
    x = 3,844.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.