Home / 3,731.24-5,147.94-2,159.08

Finding the Fourth Proportional to 3,731.24, 5,147.94 and 2,159.08

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Solution

The fourth proportional to 3,731.24, 5,147.94 and 2,159.08 is: 2,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.24 : 5,147.94 = 2,159.08 : x
  2. Step 2: Convert to fraction form
    3,731.24/5,147.94 = 2,159.08/x
  3. Step 3: Cross multiply
    3,731.24x = 5,147.94 × 2,159.08
  4. Step 4: Simplify right side
    3,731.24x = 11,114,814.30
  5. Step 5: Solve for x
    x = 11,114,814.30/3,731.24
  6. Step 6: Final answer
    x = 2,978.85

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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.