Home / 2,622.62-3,617.69-1,691.12

Finding the Fourth Proportional to 2,622.62, 3,617.69 and 1,691.12

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Solution

The fourth proportional to 2,622.62, 3,617.69 and 1,691.12 is: 2,332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.62 : 3,617.69 = 1,691.12 : x
  2. Step 2: Convert to fraction form
    2,622.62/3,617.69 = 1,691.12/x
  3. Step 3: Cross multiply
    2,622.62x = 3,617.69 × 1,691.12
  4. Step 4: Simplify right side
    2,622.62x = 6,117,948.50
  5. Step 5: Solve for x
    x = 6,117,948.50/2,622.62
  6. Step 6: Final answer
    x = 2,332.76

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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.