Home / 3,142.80-4,715.82-1,295.46

Finding the Fourth Proportional to 3,142.80, 4,715.82 and 1,295.46

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Solution

The fourth proportional to 3,142.80, 4,715.82 and 1,295.46 is: 1,943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.80 : 4,715.82 = 1,295.46 : x
  2. Step 2: Convert to fraction form
    3,142.80/4,715.82 = 1,295.46/x
  3. Step 3: Cross multiply
    3,142.80x = 4,715.82 × 1,295.46
  4. Step 4: Simplify right side
    3,142.80x = 6,109,156.18
  5. Step 5: Solve for x
    x = 6,109,156.18/3,142.80
  6. Step 6: Final answer
    x = 1,943.86

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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.