Home / 3,731.74-5,149.80-2,159.80

Finding the Fourth Proportional to 3,731.74, 5,149.80 and 2,159.80

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Solution

The fourth proportional to 3,731.74, 5,149.80 and 2,159.80 is: 2,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.74 : 5,149.80 = 2,159.80 : x
  2. Step 2: Convert to fraction form
    3,731.74/5,149.80 = 2,159.80/x
  3. Step 3: Cross multiply
    3,731.74x = 5,149.80 × 2,159.80
  4. Step 4: Simplify right side
    3,731.74x = 11,122,538.04
  5. Step 5: Solve for x
    x = 11,122,538.04/3,731.74
  6. Step 6: Final answer
    x = 2,980.52

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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.