Home / 3,434.79-5,139.88-2,974.15

Finding the Fourth Proportional to 3,434.79, 5,139.88 and 2,974.15

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Solution

The fourth proportional to 3,434.79, 5,139.88 and 2,974.15 is: 4,450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.79 : 5,139.88 = 2,974.15 : x
  2. Step 2: Convert to fraction form
    3,434.79/5,139.88 = 2,974.15/x
  3. Step 3: Cross multiply
    3,434.79x = 5,139.88 × 2,974.15
  4. Step 4: Simplify right side
    3,434.79x = 15,286,774.10
  5. Step 5: Solve for x
    x = 15,286,774.10/3,434.79
  6. Step 6: Final answer
    x = 4,450.57

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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.