Home / 3,513.12-5,269.68-1,291.92

Finding the Fourth Proportional to 3,513.12, 5,269.68 and 1,291.92

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Solution

The fourth proportional to 3,513.12, 5,269.68 and 1,291.92 is: 1,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.12 : 5,269.68 = 1,291.92 : x
  2. Step 2: Convert to fraction form
    3,513.12/5,269.68 = 1,291.92/x
  3. Step 3: Cross multiply
    3,513.12x = 5,269.68 × 1,291.92
  4. Step 4: Simplify right side
    3,513.12x = 6,808,004.99
  5. Step 5: Solve for x
    x = 6,808,004.99/3,513.12
  6. Step 6: Final answer
    x = 1,937.88

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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.