Home / 3,318.38-4,977.59-1,009.88

Finding the Fourth Proportional to 3,318.38, 4,977.59 and 1,009.88

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Solution

The fourth proportional to 3,318.38, 4,977.59 and 1,009.88 is: 1,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.38 : 4,977.59 = 1,009.88 : x
  2. Step 2: Convert to fraction form
    3,318.38/4,977.59 = 1,009.88/x
  3. Step 3: Cross multiply
    3,318.38x = 4,977.59 × 1,009.88
  4. Step 4: Simplify right side
    3,318.38x = 5,026,738.65
  5. Step 5: Solve for x
    x = 5,026,738.65/3,318.38
  6. Step 6: Final answer
    x = 1,514.82

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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.