Home / 2,103.12-3,154.68-1,332

Finding the Fourth Proportional to 2,103.12, 3,154.68 and 1,332

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Solution

The fourth proportional to 2,103.12, 3,154.68 and 1,332 is: 1,998

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.12 : 3,154.68 = 1,332 : x
  2. Step 2: Convert to fraction form
    2,103.12/3,154.68 = 1,332/x
  3. Step 3: Cross multiply
    2,103.12x = 3,154.68 × 1,332
  4. Step 4: Simplify right side
    2,103.12x = 4,202,033.76
  5. Step 5: Solve for x
    x = 4,202,033.76/2,103.12
  6. Step 6: Final answer
    x = 1,998

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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.