Home / 3,938.65-5,909.56-3,876.46

Finding the Fourth Proportional to 3,938.65, 5,909.56 and 3,876.46

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Solution

The fourth proportional to 3,938.65, 5,909.56 and 3,876.46 is: 5,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.65 : 5,909.56 = 3,876.46 : x
  2. Step 2: Convert to fraction form
    3,938.65/5,909.56 = 3,876.46/x
  3. Step 3: Cross multiply
    3,938.65x = 5,909.56 × 3,876.46
  4. Step 4: Simplify right side
    3,938.65x = 22,908,148.49
  5. Step 5: Solve for x
    x = 22,908,148.49/3,938.65
  6. Step 6: Final answer
    x = 5,816.25

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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.