Home / 1,479.44-2,217.72-749.36

Finding the Fourth Proportional to 1,479.44, 2,217.72 and 749.36

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Solution

The fourth proportional to 1,479.44, 2,217.72 and 749.36 is: 1,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.44 : 2,217.72 = 749.36 : x
  2. Step 2: Convert to fraction form
    1,479.44/2,217.72 = 749.36/x
  3. Step 3: Cross multiply
    1,479.44x = 2,217.72 × 749.36
  4. Step 4: Simplify right side
    1,479.44x = 1,661,870.66
  5. Step 5: Solve for x
    x = 1,661,870.66/1,479.44
  6. Step 6: Final answer
    x = 1,123.31

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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.