Home / 3,868.50-5,341.30-2,378.42

Finding the Fourth Proportional to 3,868.50, 5,341.30 and 2,378.42

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Solution

The fourth proportional to 3,868.50, 5,341.30 and 2,378.42 is: 3,283.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.50 : 5,341.30 = 2,378.42 : x
  2. Step 2: Convert to fraction form
    3,868.50/5,341.30 = 2,378.42/x
  3. Step 3: Cross multiply
    3,868.50x = 5,341.30 × 2,378.42
  4. Step 4: Simplify right side
    3,868.50x = 12,703,854.75
  5. Step 5: Solve for x
    x = 12,703,854.75/3,868.50
  6. Step 6: Final answer
    x = 3,283.92

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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.