Home / 3,869.74-5,341.11-2,378.95

Finding the Fourth Proportional to 3,869.74, 5,341.11 and 2,378.95

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Solution

The fourth proportional to 3,869.74, 5,341.11 and 2,378.95 is: 3,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.74 : 5,341.11 = 2,378.95 : x
  2. Step 2: Convert to fraction form
    3,869.74/5,341.11 = 2,378.95/x
  3. Step 3: Cross multiply
    3,869.74x = 5,341.11 × 2,378.95
  4. Step 4: Simplify right side
    3,869.74x = 12,706,233.63
  5. Step 5: Solve for x
    x = 12,706,233.63/3,869.74
  6. Step 6: Final answer
    x = 3,283.49

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1.5x scale

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.