Home / 1,426.11-2,139.84-502.33

Finding the Fourth Proportional to 1,426.11, 2,139.84 and 502.33

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Solution

The fourth proportional to 1,426.11, 2,139.84 and 502.33 is: 753.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.11 : 2,139.84 = 502.33 : x
  2. Step 2: Convert to fraction form
    1,426.11/2,139.84 = 502.33/x
  3. Step 3: Cross multiply
    1,426.11x = 2,139.84 × 502.33
  4. Step 4: Simplify right side
    1,426.11x = 1,074,899.88
  5. Step 5: Solve for x
    x = 1,074,899.88/1,426.11
  6. Step 6: Final answer
    x = 753.73

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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.