Home / 1,034.20-1,551.12-670.60

Finding the Fourth Proportional to 1,034.20, 1,551.12 and 670.60

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Solution

The fourth proportional to 1,034.20, 1,551.12 and 670.60 is: 1,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.20 : 1,551.12 = 670.60 : x
  2. Step 2: Convert to fraction form
    1,034.20/1,551.12 = 670.60/x
  3. Step 3: Cross multiply
    1,034.20x = 1,551.12 × 670.60
  4. Step 4: Simplify right side
    1,034.20x = 1,040,181.07
  5. Step 5: Solve for x
    x = 1,040,181.07/1,034.20
  6. Step 6: Final answer
    x = 1,005.78

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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.