Home / 5,377.09-7,419.08-3,137.69

Finding the Fourth Proportional to 5,377.09, 7,419.08 and 3,137.69

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Solution

The fourth proportional to 5,377.09, 7,419.08 and 3,137.69 is: 4,329.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.09 : 7,419.08 = 3,137.69 : x
  2. Step 2: Convert to fraction form
    5,377.09/7,419.08 = 3,137.69/x
  3. Step 3: Cross multiply
    5,377.09x = 7,419.08 × 3,137.69
  4. Step 4: Simplify right side
    5,377.09x = 23,278,743.87
  5. Step 5: Solve for x
    x = 23,278,743.87/5,377.09
  6. Step 6: Final answer
    x = 4,329.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.