Home / 2,515.12-3,772.80-1,344.64

Finding the Fourth Proportional to 2,515.12, 3,772.80 and 1,344.64

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Solution

The fourth proportional to 2,515.12, 3,772.80 and 1,344.64 is: 2,017.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.12 : 3,772.80 = 1,344.64 : x
  2. Step 2: Convert to fraction form
    2,515.12/3,772.80 = 1,344.64/x
  3. Step 3: Cross multiply
    2,515.12x = 3,772.80 × 1,344.64
  4. Step 4: Simplify right side
    2,515.12x = 5,073,057.79
  5. Step 5: Solve for x
    x = 5,073,057.79/2,515.12
  6. Step 6: Final answer
    x = 2,017.02

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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.