Home / 7,322.40-10,981.17-2,127.06

Finding the Fourth Proportional to 7,322.40, 10,981.17 and 2,127.06

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Solution

The fourth proportional to 7,322.40, 10,981.17 and 2,127.06 is: 3,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.40 : 10,981.17 = 2,127.06 : x
  2. Step 2: Convert to fraction form
    7,322.40/10,981.17 = 2,127.06/x
  3. Step 3: Cross multiply
    7,322.40x = 10,981.17 × 2,127.06
  4. Step 4: Simplify right side
    7,322.40x = 23,357,607.46
  5. Step 5: Solve for x
    x = 23,357,607.46/7,322.40
  6. Step 6: Final answer
    x = 3,189.88

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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.