Home / 1,412.30-2,118.65-534.56

Finding the Fourth Proportional to 1,412.30, 2,118.65 and 534.56

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Solution

The fourth proportional to 1,412.30, 2,118.65 and 534.56 is: 801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.30 : 2,118.65 = 534.56 : x
  2. Step 2: Convert to fraction form
    1,412.30/2,118.65 = 534.56/x
  3. Step 3: Cross multiply
    1,412.30x = 2,118.65 × 534.56
  4. Step 4: Simplify right side
    1,412.30x = 1,132,542.87
  5. Step 5: Solve for x
    x = 1,132,542.87/1,412.30
  6. Step 6: Final answer
    x = 801.92

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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.