Home / 7,188.40-9,919.28-4,044.52

Finding the Fourth Proportional to 7,188.40, 9,919.28 and 4,044.52

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Solution

The fourth proportional to 7,188.40, 9,919.28 and 4,044.52 is: 5,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.40 : 9,919.28 = 4,044.52 : x
  2. Step 2: Convert to fraction form
    7,188.40/9,919.28 = 4,044.52/x
  3. Step 3: Cross multiply
    7,188.40x = 9,919.28 × 4,044.52
  4. Step 4: Simplify right side
    7,188.40x = 40,118,726.35
  5. Step 5: Solve for x
    x = 40,118,726.35/7,188.40
  6. Step 6: Final answer
    x = 5,581.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.