Home / 3,412.98-5,113.17-1,767.78

Finding the Fourth Proportional to 3,412.98, 5,113.17 and 1,767.78

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Solution

The fourth proportional to 3,412.98, 5,113.17 and 1,767.78 is: 2,648.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.98 : 5,113.17 = 1,767.78 : x
  2. Step 2: Convert to fraction form
    3,412.98/5,113.17 = 1,767.78/x
  3. Step 3: Cross multiply
    3,412.98x = 5,113.17 × 1,767.78
  4. Step 4: Simplify right side
    3,412.98x = 9,038,959.66
  5. Step 5: Solve for x
    x = 9,038,959.66/3,412.98
  6. Step 6: Final answer
    x = 2,648.41

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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.