Home / 3,712.56-5,568.80-1,115.48

Finding the Fourth Proportional to 3,712.56, 5,568.80 and 1,115.48

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Solution

The fourth proportional to 3,712.56, 5,568.80 and 1,115.48 is: 1,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.56 : 5,568.80 = 1,115.48 : x
  2. Step 2: Convert to fraction form
    3,712.56/5,568.80 = 1,115.48/x
  3. Step 3: Cross multiply
    3,712.56x = 5,568.80 × 1,115.48
  4. Step 4: Simplify right side
    3,712.56x = 6,211,885.02
  5. Step 5: Solve for x
    x = 6,211,885.02/3,712.56
  6. Step 6: Final answer
    x = 1,673.21

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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.