Home / 1,449.56-2,175.08-929.85

Finding the Fourth Proportional to 1,449.56, 2,175.08 and 929.85

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Solution

The fourth proportional to 1,449.56, 2,175.08 and 929.85 is: 1,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.56 : 2,175.08 = 929.85 : x
  2. Step 2: Convert to fraction form
    1,449.56/2,175.08 = 929.85/x
  3. Step 3: Cross multiply
    1,449.56x = 2,175.08 × 929.85
  4. Step 4: Simplify right side
    1,449.56x = 2,022,493.49
  5. Step 5: Solve for x
    x = 2,022,493.49/1,449.56
  6. Step 6: Final answer
    x = 1,395.25

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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.