Home / 1,040.09-1,441.50-1,020.65

Finding the Fourth Proportional to 1,040.09, 1,441.50 and 1,020.65

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Solution

The fourth proportional to 1,040.09, 1,441.50 and 1,020.65 is: 1,414.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.09 : 1,441.50 = 1,020.65 : x
  2. Step 2: Convert to fraction form
    1,040.09/1,441.50 = 1,020.65/x
  3. Step 3: Cross multiply
    1,040.09x = 1,441.50 × 1,020.65
  4. Step 4: Simplify right side
    1,040.09x = 1,471,259.77
  5. Step 5: Solve for x
    x = 1,471,259.77/1,040.09
  6. Step 6: Final answer
    x = 1,414.56

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.