Home / 1,334.15-2,001.40-456.83

Finding the Fourth Proportional to 1,334.15, 2,001.40 and 456.83

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Solution

The fourth proportional to 1,334.15, 2,001.40 and 456.83 is: 685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.15 : 2,001.40 = 456.83 : x
  2. Step 2: Convert to fraction form
    1,334.15/2,001.40 = 456.83/x
  3. Step 3: Cross multiply
    1,334.15x = 2,001.40 × 456.83
  4. Step 4: Simplify right side
    1,334.15x = 914,288.41
  5. Step 5: Solve for x
    x = 914,288.41/1,334.15
  6. Step 6: Final answer
    x = 685.30

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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.