Home / 1,540.10-2,309.39-881.88

Finding the Fourth Proportional to 1,540.10, 2,309.39 and 881.88

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Solution

The fourth proportional to 1,540.10, 2,309.39 and 881.88 is: 1,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.10 : 2,309.39 = 881.88 : x
  2. Step 2: Convert to fraction form
    1,540.10/2,309.39 = 881.88/x
  3. Step 3: Cross multiply
    1,540.10x = 2,309.39 × 881.88
  4. Step 4: Simplify right side
    1,540.10x = 2,036,604.85
  5. Step 5: Solve for x
    x = 2,036,604.85/1,540.10
  6. Step 6: Final answer
    x = 1,322.38

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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.