Home / 1,049.40-1,448.28-1,016.64

Finding the Fourth Proportional to 1,049.40, 1,448.28 and 1,016.64

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Solution

The fourth proportional to 1,049.40, 1,448.28 and 1,016.64 is: 1,403.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.40 : 1,448.28 = 1,016.64 : x
  2. Step 2: Convert to fraction form
    1,049.40/1,448.28 = 1,016.64/x
  3. Step 3: Cross multiply
    1,049.40x = 1,448.28 × 1,016.64
  4. Step 4: Simplify right side
    1,049.40x = 1,472,379.38
  5. Step 5: Solve for x
    x = 1,472,379.38/1,049.40
  6. Step 6: Final answer
    x = 1,403.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.