Home / 2,531.12-3,794.96-1,297.72

Finding the Fourth Proportional to 2,531.12, 3,794.96 and 1,297.72

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Solution

The fourth proportional to 2,531.12, 3,794.96 and 1,297.72 is: 1,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.12 : 3,794.96 = 1,297.72 : x
  2. Step 2: Convert to fraction form
    2,531.12/3,794.96 = 1,297.72/x
  3. Step 3: Cross multiply
    2,531.12x = 3,794.96 × 1,297.72
  4. Step 4: Simplify right side
    2,531.12x = 4,924,795.49
  5. Step 5: Solve for x
    x = 4,924,795.49/2,531.12
  6. Step 6: Final answer
    x = 1,945.70

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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.