Home / 5,432.13-8,131.19-3,485.70

Finding the Fourth Proportional to 5,432.13, 8,131.19 and 3,485.70

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Solution

The fourth proportional to 5,432.13, 8,131.19 and 3,485.70 is: 5,217.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.13 : 8,131.19 = 3,485.70 : x
  2. Step 2: Convert to fraction form
    5,432.13/8,131.19 = 3,485.70/x
  3. Step 3: Cross multiply
    5,432.13x = 8,131.19 × 3,485.70
  4. Step 4: Simplify right side
    5,432.13x = 28,342,871.55
  5. Step 5: Solve for x
    x = 28,342,871.55/5,432.13
  6. Step 6: Final answer
    x = 5,217.63

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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.