Home / 7,488.71-11,218.03-3,729.16

Finding the Fourth Proportional to 7,488.71, 11,218.03 and 3,729.16

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Solution

The fourth proportional to 7,488.71, 11,218.03 and 3,729.16 is: 5,586.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.71 : 11,218.03 = 3,729.16 : x
  2. Step 2: Convert to fraction form
    7,488.71/11,218.03 = 3,729.16/x
  3. Step 3: Cross multiply
    7,488.71x = 11,218.03 × 3,729.16
  4. Step 4: Simplify right side
    7,488.71x = 41,833,828.75
  5. Step 5: Solve for x
    x = 41,833,828.75/7,488.71
  6. Step 6: Final answer
    x = 5,586.25

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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.