Home / 5,636.80-7,781.50-3,751.52

Finding the Fourth Proportional to 5,636.80, 7,781.50 and 3,751.52

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Solution

The fourth proportional to 5,636.80, 7,781.50 and 3,751.52 is: 5,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.80 : 7,781.50 = 3,751.52 : x
  2. Step 2: Convert to fraction form
    5,636.80/7,781.50 = 3,751.52/x
  3. Step 3: Cross multiply
    5,636.80x = 7,781.50 × 3,751.52
  4. Step 4: Simplify right side
    5,636.80x = 29,192,452.88
  5. Step 5: Solve for x
    x = 29,192,452.88/5,636.80
  6. Step 6: Final answer
    x = 5,178.91

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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.