Home / 5,789.08-7,988.91-3,136.49

Finding the Fourth Proportional to 5,789.08, 7,988.91 and 3,136.49

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Solution

The fourth proportional to 5,789.08, 7,988.91 and 3,136.49 is: 4,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.08 : 7,988.91 = 3,136.49 : x
  2. Step 2: Convert to fraction form
    5,789.08/7,988.91 = 3,136.49/x
  3. Step 3: Cross multiply
    5,789.08x = 7,988.91 × 3,136.49
  4. Step 4: Simplify right side
    5,789.08x = 25,057,136.33
  5. Step 5: Solve for x
    x = 25,057,136.33/5,789.08
  6. Step 6: Final answer
    x = 4,328.35

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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.