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Finding the Fourth Proportional to 7,322.77, 10,981.88 and 2,642.17

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Solution

The fourth proportional to 7,322.77, 10,981.88 and 2,642.17 is: 3,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.77 : 10,981.88 = 2,642.17 : x
  2. Step 2: Convert to fraction form
    7,322.77/10,981.88 = 2,642.17/x
  3. Step 3: Cross multiply
    7,322.77x = 10,981.88 × 2,642.17
  4. Step 4: Simplify right side
    7,322.77x = 29,015,939.49
  5. Step 5: Solve for x
    x = 29,015,939.49/7,322.77
  6. Step 6: Final answer
    x = 3,962.43

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1.5x scale

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.