Home / 5,425.10-8,115.37-4,331.60

Finding the Fourth Proportional to 5,425.10, 8,115.37 and 4,331.60

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Solution

The fourth proportional to 5,425.10, 8,115.37 and 4,331.60 is: 6,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.10 : 8,115.37 = 4,331.60 : x
  2. Step 2: Convert to fraction form
    5,425.10/8,115.37 = 4,331.60/x
  3. Step 3: Cross multiply
    5,425.10x = 8,115.37 × 4,331.60
  4. Step 4: Simplify right side
    5,425.10x = 35,152,536.69
  5. Step 5: Solve for x
    x = 35,152,536.69/5,425.10
  6. Step 6: Final answer
    x = 6,479.61

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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.