Home / 5,438.92-8,159.40-2,517.22

Finding the Fourth Proportional to 5,438.92, 8,159.40 and 2,517.22

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Solution

The fourth proportional to 5,438.92, 8,159.40 and 2,517.22 is: 3,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.92 : 8,159.40 = 2,517.22 : x
  2. Step 2: Convert to fraction form
    5,438.92/8,159.40 = 2,517.22/x
  3. Step 3: Cross multiply
    5,438.92x = 8,159.40 × 2,517.22
  4. Step 4: Simplify right side
    5,438.92x = 20,539,004.87
  5. Step 5: Solve for x
    x = 20,539,004.87/5,438.92
  6. Step 6: Final answer
    x = 3,776.30

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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.