Home / 1,217.36-1,826.92-487.14

Finding the Fourth Proportional to 1,217.36, 1,826.92 and 487.14

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Solution

The fourth proportional to 1,217.36, 1,826.92 and 487.14 is: 731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.36 : 1,826.92 = 487.14 : x
  2. Step 2: Convert to fraction form
    1,217.36/1,826.92 = 487.14/x
  3. Step 3: Cross multiply
    1,217.36x = 1,826.92 × 487.14
  4. Step 4: Simplify right side
    1,217.36x = 889,965.81
  5. Step 5: Solve for x
    x = 889,965.81/1,217.36
  6. Step 6: Final answer
    x = 731.06

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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.