Home / 3,148.70-4,729.11-2,176.70

Finding the Fourth Proportional to 3,148.70, 4,729.11 and 2,176.70

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Solution

The fourth proportional to 3,148.70, 4,729.11 and 2,176.70 is: 3,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.70 : 4,729.11 = 2,176.70 : x
  2. Step 2: Convert to fraction form
    3,148.70/4,729.11 = 2,176.70/x
  3. Step 3: Cross multiply
    3,148.70x = 4,729.11 × 2,176.70
  4. Step 4: Simplify right side
    3,148.70x = 10,293,853.74
  5. Step 5: Solve for x
    x = 10,293,853.74/3,148.70
  6. Step 6: Final answer
    x = 3,269.24

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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.