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Finding the Fourth Proportional to 5,891.80, 8,131.12 and 3,239.25

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Solution

The fourth proportional to 5,891.80, 8,131.12 and 3,239.25 is: 4,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.80 : 8,131.12 = 3,239.25 : x
  2. Step 2: Convert to fraction form
    5,891.80/8,131.12 = 3,239.25/x
  3. Step 3: Cross multiply
    5,891.80x = 8,131.12 × 3,239.25
  4. Step 4: Simplify right side
    5,891.80x = 26,338,714.26
  5. Step 5: Solve for x
    x = 26,338,714.26/5,891.80
  6. Step 6: Final answer
    x = 4,470.40

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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.