Home / 5,431.26-8,146.54-2,658.13

Finding the Fourth Proportional to 5,431.26, 8,146.54 and 2,658.13

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Solution

The fourth proportional to 5,431.26, 8,146.54 and 2,658.13 is: 3,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.26 : 8,146.54 = 2,658.13 : x
  2. Step 2: Convert to fraction form
    5,431.26/8,146.54 = 2,658.13/x
  3. Step 3: Cross multiply
    5,431.26x = 8,146.54 × 2,658.13
  4. Step 4: Simplify right side
    5,431.26x = 21,654,545.33
  5. Step 5: Solve for x
    x = 21,654,545.33/5,431.26
  6. Step 6: Final answer
    x = 3,987.02

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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.