Home / 2,969.06-4,454.12-1,020.78

Finding the Fourth Proportional to 2,969.06, 4,454.12 and 1,020.78

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Solution

The fourth proportional to 2,969.06, 4,454.12 and 1,020.78 is: 1,531.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.06 : 4,454.12 = 1,020.78 : x
  2. Step 2: Convert to fraction form
    2,969.06/4,454.12 = 1,020.78/x
  3. Step 3: Cross multiply
    2,969.06x = 4,454.12 × 1,020.78
  4. Step 4: Simplify right side
    2,969.06x = 4,546,679.17
  5. Step 5: Solve for x
    x = 4,546,679.17/2,969.06
  6. Step 6: Final answer
    x = 1,531.36

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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.