Home / 1,335.32-2,002.88-1,245.14

Finding the Fourth Proportional to 1,335.32, 2,002.88 and 1,245.14

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Solution

The fourth proportional to 1,335.32, 2,002.88 and 1,245.14 is: 1,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.32 : 2,002.88 = 1,245.14 : x
  2. Step 2: Convert to fraction form
    1,335.32/2,002.88 = 1,245.14/x
  3. Step 3: Cross multiply
    1,335.32x = 2,002.88 × 1,245.14
  4. Step 4: Simplify right side
    1,335.32x = 2,493,866.00
  5. Step 5: Solve for x
    x = 2,493,866.00/1,335.32
  6. Step 6: Final answer
    x = 1,867.62

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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.