Home / 5,627.92-7,766.40-3,109.90

Finding the Fourth Proportional to 5,627.92, 7,766.40 and 3,109.90

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Solution

The fourth proportional to 5,627.92, 7,766.40 and 3,109.90 is: 4,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.92 : 7,766.40 = 3,109.90 : x
  2. Step 2: Convert to fraction form
    5,627.92/7,766.40 = 3,109.90/x
  3. Step 3: Cross multiply
    5,627.92x = 7,766.40 × 3,109.90
  4. Step 4: Simplify right side
    5,627.92x = 24,152,711.81
  5. Step 5: Solve for x
    x = 24,152,711.81/5,627.92
  6. Step 6: Final answer
    x = 4,291.59

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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.