Home / 1,695.17-2,541.92-1,078.43

Finding the Fourth Proportional to 1,695.17, 2,541.92 and 1,078.43

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Solution

The fourth proportional to 1,695.17, 2,541.92 and 1,078.43 is: 1,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.17 : 2,541.92 = 1,078.43 : x
  2. Step 2: Convert to fraction form
    1,695.17/2,541.92 = 1,078.43/x
  3. Step 3: Cross multiply
    1,695.17x = 2,541.92 × 1,078.43
  4. Step 4: Simplify right side
    1,695.17x = 2,741,264.68
  5. Step 5: Solve for x
    x = 2,741,264.68/1,695.17
  6. Step 6: Final answer
    x = 1,617.10

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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.