Home / 5,315.28-7,972.92-2,239.44

Finding the Fourth Proportional to 5,315.28, 7,972.92 and 2,239.44

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Solution

The fourth proportional to 5,315.28, 7,972.92 and 2,239.44 is: 3,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.28 : 7,972.92 = 2,239.44 : x
  2. Step 2: Convert to fraction form
    5,315.28/7,972.92 = 2,239.44/x
  3. Step 3: Cross multiply
    5,315.28x = 7,972.92 × 2,239.44
  4. Step 4: Simplify right side
    5,315.28x = 17,854,875.96
  5. Step 5: Solve for x
    x = 17,854,875.96/5,315.28
  6. Step 6: Final answer
    x = 3,359.16

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1.5x scale

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.