Home / 2,695.91-3,720.40-1,577.66

Finding the Fourth Proportional to 2,695.91, 3,720.40 and 1,577.66

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Solution

The fourth proportional to 2,695.91, 3,720.40 and 1,577.66 is: 2,177.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.91 : 3,720.40 = 1,577.66 : x
  2. Step 2: Convert to fraction form
    2,695.91/3,720.40 = 1,577.66/x
  3. Step 3: Cross multiply
    2,695.91x = 3,720.40 × 1,577.66
  4. Step 4: Simplify right side
    2,695.91x = 5,869,503.72
  5. Step 5: Solve for x
    x = 5,869,503.72/2,695.91
  6. Step 6: Final answer
    x = 2,177.19

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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.