Home / 5,789.15-7,988.97-3,136.49

Finding the Fourth Proportional to 5,789.15, 7,988.97 and 3,136.49

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Solution

The fourth proportional to 5,789.15, 7,988.97 and 3,136.49 is: 4,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.15 : 7,988.97 = 3,136.49 : x
  2. Step 2: Convert to fraction form
    5,789.15/7,988.97 = 3,136.49/x
  3. Step 3: Cross multiply
    5,789.15x = 7,988.97 × 3,136.49
  4. Step 4: Simplify right side
    5,789.15x = 25,057,284.57
  5. Step 5: Solve for x
    x = 25,057,284.57/5,789.15
  6. Step 6: Final answer
    x = 4,328.32

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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.