Home / 3,124.62-4,315.20-2,702.94

Finding the Fourth Proportional to 3,124.62, 4,315.20 and 2,702.94

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Solution

The fourth proportional to 3,124.62, 4,315.20 and 2,702.94 is: 3,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.62 : 4,315.20 = 2,702.94 : x
  2. Step 2: Convert to fraction form
    3,124.62/4,315.20 = 2,702.94/x
  3. Step 3: Cross multiply
    3,124.62x = 4,315.20 × 2,702.94
  4. Step 4: Simplify right side
    3,124.62x = 11,663,726.69
  5. Step 5: Solve for x
    x = 11,663,726.69/3,124.62
  6. Step 6: Final answer
    x = 3,732.85

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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.