Home / 3,345.60-5,018.40-2,827.20

Finding the Fourth Proportional to 3,345.60, 5,018.40 and 2,827.20

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Solution

The fourth proportional to 3,345.60, 5,018.40 and 2,827.20 is: 4,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.60 : 5,018.40 = 2,827.20 : x
  2. Step 2: Convert to fraction form
    3,345.60/5,018.40 = 2,827.20/x
  3. Step 3: Cross multiply
    3,345.60x = 5,018.40 × 2,827.20
  4. Step 4: Simplify right side
    3,345.60x = 14,188,020.48
  5. Step 5: Solve for x
    x = 14,188,020.48/3,345.60
  6. Step 6: Final answer
    x = 4,240.80

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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.