Home / 1,331.15-1,996.72-1,023.55

Finding the Fourth Proportional to 1,331.15, 1,996.72 and 1,023.55

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Solution

The fourth proportional to 1,331.15, 1,996.72 and 1,023.55 is: 1,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.15 : 1,996.72 = 1,023.55 : x
  2. Step 2: Convert to fraction form
    1,331.15/1,996.72 = 1,023.55/x
  3. Step 3: Cross multiply
    1,331.15x = 1,996.72 × 1,023.55
  4. Step 4: Simplify right side
    1,331.15x = 2,043,735.21
  5. Step 5: Solve for x
    x = 2,043,735.21/1,331.15
  6. Step 6: Final answer
    x = 1,535.32

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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.