Home / 5,989.28-8,980.38-2,291.78

Finding the Fourth Proportional to 5,989.28, 8,980.38 and 2,291.78

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Solution

The fourth proportional to 5,989.28, 8,980.38 and 2,291.78 is: 3,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,989.28 : 8,980.38 = 2,291.78 : x
  2. Step 2: Convert to fraction form
    5,989.28/8,980.38 = 2,291.78/x
  3. Step 3: Cross multiply
    5,989.28x = 8,980.38 × 2,291.78
  4. Step 4: Simplify right side
    5,989.28x = 20,581,055.28
  5. Step 5: Solve for x
    x = 20,581,055.28/5,989.28
  6. Step 6: Final answer
    x = 3,436.32

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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.