Home / 5,432.50-8,136.40-3,458.11

Finding the Fourth Proportional to 5,432.50, 8,136.40 and 3,458.11

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Solution

The fourth proportional to 5,432.50, 8,136.40 and 3,458.11 is: 5,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.50 : 8,136.40 = 3,458.11 : x
  2. Step 2: Convert to fraction form
    5,432.50/8,136.40 = 3,458.11/x
  3. Step 3: Cross multiply
    5,432.50x = 8,136.40 × 3,458.11
  4. Step 4: Simplify right side
    5,432.50x = 28,136,566.20
  5. Step 5: Solve for x
    x = 28,136,566.20/5,432.50
  6. Step 6: Final answer
    x = 5,179.30

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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.