Home / 3,458.56-5,190-2,519.76

Finding the Fourth Proportional to 3,458.56, 5,190 and 2,519.76

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Solution

The fourth proportional to 3,458.56, 5,190 and 2,519.76 is: 3,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.56 : 5,190 = 2,519.76 : x
  2. Step 2: Convert to fraction form
    3,458.56/5,190 = 2,519.76/x
  3. Step 3: Cross multiply
    3,458.56x = 5,190 × 2,519.76
  4. Step 4: Simplify right side
    3,458.56x = 13,077,554.40
  5. Step 5: Solve for x
    x = 13,077,554.40/3,458.56
  6. Step 6: Final answer
    x = 3,781.21

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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.