Home / 3,868.49-5,341.29-2,378.41

Finding the Fourth Proportional to 3,868.49, 5,341.29 and 2,378.41

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Solution

The fourth proportional to 3,868.49, 5,341.29 and 2,378.41 is: 3,283.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.49 : 5,341.29 = 2,378.41 : x
  2. Step 2: Convert to fraction form
    3,868.49/5,341.29 = 2,378.41/x
  3. Step 3: Cross multiply
    3,868.49x = 5,341.29 × 2,378.41
  4. Step 4: Simplify right side
    3,868.49x = 12,703,777.55
  5. Step 5: Solve for x
    x = 12,703,777.55/3,868.49
  6. Step 6: Final answer
    x = 3,283.91

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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.