Home / 5,438.12-7,508.21-4,176.92

Finding the Fourth Proportional to 5,438.12, 7,508.21 and 4,176.92

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Solution

The fourth proportional to 5,438.12, 7,508.21 and 4,176.92 is: 5,766.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.12 : 7,508.21 = 4,176.92 : x
  2. Step 2: Convert to fraction form
    5,438.12/7,508.21 = 4,176.92/x
  3. Step 3: Cross multiply
    5,438.12x = 7,508.21 × 4,176.92
  4. Step 4: Simplify right side
    5,438.12x = 31,361,134.09
  5. Step 5: Solve for x
    x = 31,361,134.09/5,438.12
  6. Step 6: Final answer
    x = 5,766.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.