Home / 3,731.58-5,149.26-2,159.76

Finding the Fourth Proportional to 3,731.58, 5,149.26 and 2,159.76

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Solution

The fourth proportional to 3,731.58, 5,149.26 and 2,159.76 is: 2,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.58 : 5,149.26 = 2,159.76 : x
  2. Step 2: Convert to fraction form
    3,731.58/5,149.26 = 2,159.76/x
  3. Step 3: Cross multiply
    3,731.58x = 5,149.26 × 2,159.76
  4. Step 4: Simplify right side
    3,731.58x = 11,121,165.78
  5. Step 5: Solve for x
    x = 11,121,165.78/3,731.58
  6. Step 6: Final answer
    x = 2,980.28

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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.