Home / 5,985.92-8,972.80-2,287.20

Finding the Fourth Proportional to 5,985.92, 8,972.80 and 2,287.20

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Solution

The fourth proportional to 5,985.92, 8,972.80 and 2,287.20 is: 3,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,985.92 : 8,972.80 = 2,287.20 : x
  2. Step 2: Convert to fraction form
    5,985.92/8,972.80 = 2,287.20/x
  3. Step 3: Cross multiply
    5,985.92x = 8,972.80 × 2,287.20
  4. Step 4: Simplify right side
    5,985.92x = 20,522,588.16
  5. Step 5: Solve for x
    x = 20,522,588.16/5,985.92
  6. Step 6: Final answer
    x = 3,428.48

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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.