Home / 7,188.20-10,781.58-2,257.70

Finding the Fourth Proportional to 7,188.20, 10,781.58 and 2,257.70

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Solution

The fourth proportional to 7,188.20, 10,781.58 and 2,257.70 is: 3,386.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.20 : 10,781.58 = 2,257.70 : x
  2. Step 2: Convert to fraction form
    7,188.20/10,781.58 = 2,257.70/x
  3. Step 3: Cross multiply
    7,188.20x = 10,781.58 × 2,257.70
  4. Step 4: Simplify right side
    7,188.20x = 24,341,600.12
  5. Step 5: Solve for x
    x = 24,341,600.12/7,188.20
  6. Step 6: Final answer
    x = 3,386.33

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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.