Home / 3,937.80-5,437.68-3,751.08

Finding the Fourth Proportional to 3,937.80, 5,437.68 and 3,751.08

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Solution

The fourth proportional to 3,937.80, 5,437.68 and 3,751.08 is: 5,179.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.80 : 5,437.68 = 3,751.08 : x
  2. Step 2: Convert to fraction form
    3,937.80/5,437.68 = 3,751.08/x
  3. Step 3: Cross multiply
    3,937.80x = 5,437.68 × 3,751.08
  4. Step 4: Simplify right side
    3,937.80x = 20,397,172.69
  5. Step 5: Solve for x
    x = 20,397,172.69/3,937.80
  6. Step 6: Final answer
    x = 5,179.84

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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.