Home / 3,487.90-4,809.36-2,227.30

Finding the Fourth Proportional to 3,487.90, 4,809.36 and 2,227.30

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Solution

The fourth proportional to 3,487.90, 4,809.36 and 2,227.30 is: 3,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.90 : 4,809.36 = 2,227.30 : x
  2. Step 2: Convert to fraction form
    3,487.90/4,809.36 = 2,227.30/x
  3. Step 3: Cross multiply
    3,487.90x = 4,809.36 × 2,227.30
  4. Step 4: Simplify right side
    3,487.90x = 10,711,887.53
  5. Step 5: Solve for x
    x = 10,711,887.53/3,487.90
  6. Step 6: Final answer
    x = 3,071.16

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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.