Home / 3,115.67-4,675.93-2,921.87

Finding the Fourth Proportional to 3,115.67, 4,675.93 and 2,921.87

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Solution

The fourth proportional to 3,115.67, 4,675.93 and 2,921.87 is: 4,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.67 : 4,675.93 = 2,921.87 : x
  2. Step 2: Convert to fraction form
    3,115.67/4,675.93 = 2,921.87/x
  3. Step 3: Cross multiply
    3,115.67x = 4,675.93 × 2,921.87
  4. Step 4: Simplify right side
    3,115.67x = 13,662,463.97
  5. Step 5: Solve for x
    x = 13,662,463.97/3,115.67
  6. Step 6: Final answer
    x = 4,385.09

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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.