Home / 1,417.16-2,125.92-443.18

Finding the Fourth Proportional to 1,417.16, 2,125.92 and 443.18

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Solution

The fourth proportional to 1,417.16, 2,125.92 and 443.18 is: 664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.16 : 2,125.92 = 443.18 : x
  2. Step 2: Convert to fraction form
    1,417.16/2,125.92 = 443.18/x
  3. Step 3: Cross multiply
    1,417.16x = 2,125.92 × 443.18
  4. Step 4: Simplify right side
    1,417.16x = 942,165.23
  5. Step 5: Solve for x
    x = 942,165.23/1,417.16
  6. Step 6: Final answer
    x = 664.83

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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.