Home / 2,726.84-4,086.60-1,557.20

Finding the Fourth Proportional to 2,726.84, 4,086.60 and 1,557.20

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Solution

The fourth proportional to 2,726.84, 4,086.60 and 1,557.20 is: 2,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.84 : 4,086.60 = 1,557.20 : x
  2. Step 2: Convert to fraction form
    2,726.84/4,086.60 = 1,557.20/x
  3. Step 3: Cross multiply
    2,726.84x = 4,086.60 × 1,557.20
  4. Step 4: Simplify right side
    2,726.84x = 6,363,633.09
  5. Step 5: Solve for x
    x = 6,363,633.09/2,726.84
  6. Step 6: Final answer
    x = 2,333.71

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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.