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Finding the Fourth Proportional to 3,159, 4,357.80 and 2,372.76

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Solution

The fourth proportional to 3,159, 4,357.80 and 2,372.76 is: 3,273.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159 : 4,357.80 = 2,372.76 : x
  2. Step 2: Convert to fraction form
    3,159/4,357.80 = 2,372.76/x
  3. Step 3: Cross multiply
    3,159x = 4,357.80 × 2,372.76
  4. Step 4: Simplify right side
    3,159x = 10,340,013.53
  5. Step 5: Solve for x
    x = 10,340,013.53/3,159
  6. Step 6: Final answer
    x = 3,273.19

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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.