Home / 1,030.80-1,422.60-610.95

Finding the Fourth Proportional to 1,030.80, 1,422.60 and 610.95

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Solution

The fourth proportional to 1,030.80, 1,422.60 and 610.95 is: 843.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.80 : 1,422.60 = 610.95 : x
  2. Step 2: Convert to fraction form
    1,030.80/1,422.60 = 610.95/x
  3. Step 3: Cross multiply
    1,030.80x = 1,422.60 × 610.95
  4. Step 4: Simplify right side
    1,030.80x = 869,137.47
  5. Step 5: Solve for x
    x = 869,137.47/1,030.80
  6. Step 6: Final answer
    x = 843.17

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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.