Home / 3,137.10-4,702.65-1,162.20

Finding the Fourth Proportional to 3,137.10, 4,702.65 and 1,162.20

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Solution

The fourth proportional to 3,137.10, 4,702.65 and 1,162.20 is: 1,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.10 : 4,702.65 = 1,162.20 : x
  2. Step 2: Convert to fraction form
    3,137.10/4,702.65 = 1,162.20/x
  3. Step 3: Cross multiply
    3,137.10x = 4,702.65 × 1,162.20
  4. Step 4: Simplify right side
    3,137.10x = 5,465,419.83
  5. Step 5: Solve for x
    x = 5,465,419.83/3,137.10
  6. Step 6: Final answer
    x = 1,742.19

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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.