Home / 3,902.47-5,385.92-2,224.48

Finding the Fourth Proportional to 3,902.47, 5,385.92 and 2,224.48

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Solution

The fourth proportional to 3,902.47, 5,385.92 and 2,224.48 is: 3,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.47 : 5,385.92 = 2,224.48 : x
  2. Step 2: Convert to fraction form
    3,902.47/5,385.92 = 2,224.48/x
  3. Step 3: Cross multiply
    3,902.47x = 5,385.92 × 2,224.48
  4. Step 4: Simplify right side
    3,902.47x = 11,980,871.32
  5. Step 5: Solve for x
    x = 11,980,871.32/3,902.47
  6. Step 6: Final answer
    x = 3,070.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.