Home / 4,945.92-7,392-3,909.12

Finding the Fourth Proportional to 4,945.92, 7,392 and 3,909.12

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Solution

The fourth proportional to 4,945.92, 7,392 and 3,909.12 is: 5,842.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.92 : 7,392 = 3,909.12 : x
  2. Step 2: Convert to fraction form
    4,945.92/7,392 = 3,909.12/x
  3. Step 3: Cross multiply
    4,945.92x = 7,392 × 3,909.12
  4. Step 4: Simplify right side
    4,945.92x = 28,896,215.04
  5. Step 5: Solve for x
    x = 28,896,215.04/4,945.92
  6. Step 6: Final answer
    x = 5,842.43

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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.