Home / 3,125.38-4,688.70-1,394

Finding the Fourth Proportional to 3,125.38, 4,688.70 and 1,394

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Solution

The fourth proportional to 3,125.38, 4,688.70 and 1,394 is: 2,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.38 : 4,688.70 = 1,394 : x
  2. Step 2: Convert to fraction form
    3,125.38/4,688.70 = 1,394/x
  3. Step 3: Cross multiply
    3,125.38x = 4,688.70 × 1,394
  4. Step 4: Simplify right side
    3,125.38x = 6,536,040.83
  5. Step 5: Solve for x
    x = 6,536,040.83/3,125.38
  6. Step 6: Final answer
    x = 2,091.28

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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.