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Finding the Fourth Proportional to 5,891.47, 8,130.31 and 3,238.85

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Solution

The fourth proportional to 5,891.47, 8,130.31 and 3,238.85 is: 4,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.47 : 8,130.31 = 3,238.85 : x
  2. Step 2: Convert to fraction form
    5,891.47/8,130.31 = 3,238.85/x
  3. Step 3: Cross multiply
    5,891.47x = 8,130.31 × 3,238.85
  4. Step 4: Simplify right side
    5,891.47x = 26,332,866.77
  5. Step 5: Solve for x
    x = 26,332,866.77/5,891.47
  6. Step 6: Final answer
    x = 4,469.66

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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.