Home / 5,111.20-7,053.78-3,347.56

Finding the Fourth Proportional to 5,111.20, 7,053.78 and 3,347.56

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Solution

The fourth proportional to 5,111.20, 7,053.78 and 3,347.56 is: 4,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.20 : 7,053.78 = 3,347.56 : x
  2. Step 2: Convert to fraction form
    5,111.20/7,053.78 = 3,347.56/x
  3. Step 3: Cross multiply
    5,111.20x = 7,053.78 × 3,347.56
  4. Step 4: Simplify right side
    5,111.20x = 23,612,951.78
  5. Step 5: Solve for x
    x = 23,612,951.78/5,111.20
  6. Step 6: Final answer
    x = 4,619.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.