Home / 1,322.13-1,983.19-334.95

Finding the Fourth Proportional to 1,322.13, 1,983.19 and 334.95

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Solution

The fourth proportional to 1,322.13, 1,983.19 and 334.95 is: 502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322.13 : 1,983.19 = 334.95 : x
  2. Step 2: Convert to fraction form
    1,322.13/1,983.19 = 334.95/x
  3. Step 3: Cross multiply
    1,322.13x = 1,983.19 × 334.95
  4. Step 4: Simplify right side
    1,322.13x = 664,257.90
  5. Step 5: Solve for x
    x = 664,257.90/1,322.13
  6. Step 6: Final answer
    x = 502.41

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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.