Home / 5,438.13-8,156.92-3,187.91

Finding the Fourth Proportional to 5,438.13, 8,156.92 and 3,187.91

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Solution

The fourth proportional to 5,438.13, 8,156.92 and 3,187.91 is: 4,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.13 : 8,156.92 = 3,187.91 : x
  2. Step 2: Convert to fraction form
    5,438.13/8,156.92 = 3,187.91/x
  3. Step 3: Cross multiply
    5,438.13x = 8,156.92 × 3,187.91
  4. Step 4: Simplify right side
    5,438.13x = 26,003,490.51
  5. Step 5: Solve for x
    x = 26,003,490.51/5,438.13
  6. Step 6: Final answer
    x = 4,781.70

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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.