Home / 3,129.40-4,690.71-2,034.55

Finding the Fourth Proportional to 3,129.40, 4,690.71 and 2,034.55

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Solution

The fourth proportional to 3,129.40, 4,690.71 and 2,034.55 is: 3,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.40 : 4,690.71 = 2,034.55 : x
  2. Step 2: Convert to fraction form
    3,129.40/4,690.71 = 2,034.55/x
  3. Step 3: Cross multiply
    3,129.40x = 4,690.71 × 2,034.55
  4. Step 4: Simplify right side
    3,129.40x = 9,543,484.03
  5. Step 5: Solve for x
    x = 9,543,484.03/3,129.40
  6. Step 6: Final answer
    x = 3,049.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.