Home / 7,434.48-11,148.84-2,689.30

Finding the Fourth Proportional to 7,434.48, 11,148.84 and 2,689.30

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Solution

The fourth proportional to 7,434.48, 11,148.84 and 2,689.30 is: 4,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434.48 : 11,148.84 = 2,689.30 : x
  2. Step 2: Convert to fraction form
    7,434.48/11,148.84 = 2,689.30/x
  3. Step 3: Cross multiply
    7,434.48x = 11,148.84 × 2,689.30
  4. Step 4: Simplify right side
    7,434.48x = 29,982,589.35
  5. Step 5: Solve for x
    x = 29,982,589.35/7,434.48
  6. Step 6: Final answer
    x = 4,032.91

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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.