Home / 1,515.93-2,272.16-694.29

Finding the Fourth Proportional to 1,515.93, 2,272.16 and 694.29

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Solution

The fourth proportional to 1,515.93, 2,272.16 and 694.29 is: 1,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.93 : 2,272.16 = 694.29 : x
  2. Step 2: Convert to fraction form
    1,515.93/2,272.16 = 694.29/x
  3. Step 3: Cross multiply
    1,515.93x = 2,272.16 × 694.29
  4. Step 4: Simplify right side
    1,515.93x = 1,577,540.18
  5. Step 5: Solve for x
    x = 1,577,540.18/1,515.93
  6. Step 6: Final answer
    x = 1,040.64

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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.