Home / 1,030.56-1,422.20-610.90

Finding the Fourth Proportional to 1,030.56, 1,422.20 and 610.90

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Solution

The fourth proportional to 1,030.56, 1,422.20 and 610.90 is: 843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.56 : 1,422.20 = 610.90 : x
  2. Step 2: Convert to fraction form
    1,030.56/1,422.20 = 610.90/x
  3. Step 3: Cross multiply
    1,030.56x = 1,422.20 × 610.90
  4. Step 4: Simplify right side
    1,030.56x = 868,821.98
  5. Step 5: Solve for x
    x = 868,821.98/1,030.56
  6. Step 6: Final answer
    x = 843.06

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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.