Home / 2,461.31-3,398.15-1,578.66

Finding the Fourth Proportional to 2,461.31, 3,398.15 and 1,578.66

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Solution

The fourth proportional to 2,461.31, 3,398.15 and 1,578.66 is: 2,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.31 : 3,398.15 = 1,578.66 : x
  2. Step 2: Convert to fraction form
    2,461.31/3,398.15 = 1,578.66/x
  3. Step 3: Cross multiply
    2,461.31x = 3,398.15 × 1,578.66
  4. Step 4: Simplify right side
    2,461.31x = 5,364,508.76
  5. Step 5: Solve for x
    x = 5,364,508.76/2,461.31
  6. Step 6: Final answer
    x = 2,179.53

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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.