Home / 3,125.53-4,314.43-1,930.71

Finding the Fourth Proportional to 3,125.53, 4,314.43 and 1,930.71

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Solution

The fourth proportional to 3,125.53, 4,314.43 and 1,930.71 is: 2,665.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.53 : 4,314.43 = 1,930.71 : x
  2. Step 2: Convert to fraction form
    3,125.53/4,314.43 = 1,930.71/x
  3. Step 3: Cross multiply
    3,125.53x = 4,314.43 × 1,930.71
  4. Step 4: Simplify right side
    3,125.53x = 8,329,911.46
  5. Step 5: Solve for x
    x = 8,329,911.46/3,125.53
  6. Step 6: Final answer
    x = 2,665.12

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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.