Home / 1,393.20-2,080.08-1,250.64

Finding the Fourth Proportional to 1,393.20, 2,080.08 and 1,250.64

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Solution

The fourth proportional to 1,393.20, 2,080.08 and 1,250.64 is: 1,867.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.20 : 2,080.08 = 1,250.64 : x
  2. Step 2: Convert to fraction form
    1,393.20/2,080.08 = 1,250.64/x
  3. Step 3: Cross multiply
    1,393.20x = 2,080.08 × 1,250.64
  4. Step 4: Simplify right side
    1,393.20x = 2,601,431.25
  5. Step 5: Solve for x
    x = 2,601,431.25/1,393.20
  6. Step 6: Final answer
    x = 1,867.23

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.