Home / 7,418.70-11,118.33-3,031.16

Finding the Fourth Proportional to 7,418.70, 11,118.33 and 3,031.16

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Solution

The fourth proportional to 7,418.70, 11,118.33 and 3,031.16 is: 4,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.70 : 11,118.33 = 3,031.16 : x
  2. Step 2: Convert to fraction form
    7,418.70/11,118.33 = 3,031.16/x
  3. Step 3: Cross multiply
    7,418.70x = 11,118.33 × 3,031.16
  4. Step 4: Simplify right side
    7,418.70x = 33,701,381.57
  5. Step 5: Solve for x
    x = 33,701,381.57/7,418.70
  6. Step 6: Final answer
    x = 4,542.76

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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.