Home / 5,432.90-8,151.08-2,659.87

Finding the Fourth Proportional to 5,432.90, 8,151.08 and 2,659.87

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Solution

The fourth proportional to 5,432.90, 8,151.08 and 2,659.87 is: 3,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.90 : 8,151.08 = 2,659.87 : x
  2. Step 2: Convert to fraction form
    5,432.90/8,151.08 = 2,659.87/x
  3. Step 3: Cross multiply
    5,432.90x = 8,151.08 × 2,659.87
  4. Step 4: Simplify right side
    5,432.90x = 21,680,779.48
  5. Step 5: Solve for x
    x = 21,680,779.48/5,432.90
  6. Step 6: Final answer
    x = 3,990.64

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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.