Home / 7,232.80-9,981.12-4,088.92

Finding the Fourth Proportional to 7,232.80, 9,981.12 and 4,088.92

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Solution

The fourth proportional to 7,232.80, 9,981.12 and 4,088.92 is: 5,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,232.80 : 9,981.12 = 4,088.92 : x
  2. Step 2: Convert to fraction form
    7,232.80/9,981.12 = 4,088.92/x
  3. Step 3: Cross multiply
    7,232.80x = 9,981.12 × 4,088.92
  4. Step 4: Simplify right side
    7,232.80x = 40,812,001.19
  5. Step 5: Solve for x
    x = 40,812,001.19/7,232.80
  6. Step 6: Final answer
    x = 5,642.63

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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.