Home / 3,113.10-4,672.49-1,265.49

Finding the Fourth Proportional to 3,113.10, 4,672.49 and 1,265.49

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Solution

The fourth proportional to 3,113.10, 4,672.49 and 1,265.49 is: 1,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.10 : 4,672.49 = 1,265.49 : x
  2. Step 2: Convert to fraction form
    3,113.10/4,672.49 = 1,265.49/x
  3. Step 3: Cross multiply
    3,113.10x = 4,672.49 × 1,265.49
  4. Step 4: Simplify right side
    3,113.10x = 5,912,983.04
  5. Step 5: Solve for x
    x = 5,912,983.04/3,113.10
  6. Step 6: Final answer
    x = 1,899.39

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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.