Home / 3,124.76-4,689.45-2,515.82

Finding the Fourth Proportional to 3,124.76, 4,689.45 and 2,515.82

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Solution

The fourth proportional to 3,124.76, 4,689.45 and 2,515.82 is: 3,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.76 : 4,689.45 = 2,515.82 : x
  2. Step 2: Convert to fraction form
    3,124.76/4,689.45 = 2,515.82/x
  3. Step 3: Cross multiply
    3,124.76x = 4,689.45 × 2,515.82
  4. Step 4: Simplify right side
    3,124.76x = 11,797,804.58
  5. Step 5: Solve for x
    x = 11,797,804.58/3,124.76
  6. Step 6: Final answer
    x = 3,775.59

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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.