Home / 1,040.33-1,432.73-1,017.65

Finding the Fourth Proportional to 1,040.33, 1,432.73 and 1,017.65

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Solution

The fourth proportional to 1,040.33, 1,432.73 and 1,017.65 is: 1,401.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.33 : 1,432.73 = 1,017.65 : x
  2. Step 2: Convert to fraction form
    1,040.33/1,432.73 = 1,017.65/x
  3. Step 3: Cross multiply
    1,040.33x = 1,432.73 × 1,017.65
  4. Step 4: Simplify right side
    1,040.33x = 1,458,005.43
  5. Step 5: Solve for x
    x = 1,458,005.43/1,040.33
  6. Step 6: Final answer
    x = 1,401.49

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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.