Home / 2,689.56-4,032.92-1,373.12

Finding the Fourth Proportional to 2,689.56, 4,032.92 and 1,373.12

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Solution

The fourth proportional to 2,689.56, 4,032.92 and 1,373.12 is: 2,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.56 : 4,032.92 = 1,373.12 : x
  2. Step 2: Convert to fraction form
    2,689.56/4,032.92 = 1,373.12/x
  3. Step 3: Cross multiply
    2,689.56x = 4,032.92 × 1,373.12
  4. Step 4: Simplify right side
    2,689.56x = 5,537,683.11
  5. Step 5: Solve for x
    x = 5,537,683.11/2,689.56
  6. Step 6: Final answer
    x = 2,058.96

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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.