Home / 5,979.28-8,972.70-2,281.90

Finding the Fourth Proportional to 5,979.28, 8,972.70 and 2,281.90

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Solution

The fourth proportional to 5,979.28, 8,972.70 and 2,281.90 is: 3,424.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.28 : 8,972.70 = 2,281.90 : x
  2. Step 2: Convert to fraction form
    5,979.28/8,972.70 = 2,281.90/x
  3. Step 3: Cross multiply
    5,979.28x = 8,972.70 × 2,281.90
  4. Step 4: Simplify right side
    5,979.28x = 20,474,804.13
  5. Step 5: Solve for x
    x = 20,474,804.13/5,979.28
  6. Step 6: Final answer
    x = 3,424.29

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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.