Home / 5,989.28-8,985.66-2,478.64

Finding the Fourth Proportional to 5,989.28, 8,985.66 and 2,478.64

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Solution

The fourth proportional to 5,989.28, 8,985.66 and 2,478.64 is: 3,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,989.28 : 8,985.66 = 2,478.64 : x
  2. Step 2: Convert to fraction form
    5,989.28/8,985.66 = 2,478.64/x
  3. Step 3: Cross multiply
    5,989.28x = 8,985.66 × 2,478.64
  4. Step 4: Simplify right side
    5,989.28x = 22,272,244.38
  5. Step 5: Solve for x
    x = 22,272,244.38/5,989.28
  6. Step 6: Final answer
    x = 3,718.68

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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.