Home / 1,774.20-2,661.30-1,680.60

Finding the Fourth Proportional to 1,774.20, 2,661.30 and 1,680.60

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Solution

The fourth proportional to 1,774.20, 2,661.30 and 1,680.60 is: 2,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.20 : 2,661.30 = 1,680.60 : x
  2. Step 2: Convert to fraction form
    1,774.20/2,661.30 = 1,680.60/x
  3. Step 3: Cross multiply
    1,774.20x = 2,661.30 × 1,680.60
  4. Step 4: Simplify right side
    1,774.20x = 4,472,580.78
  5. Step 5: Solve for x
    x = 4,472,580.78/1,774.20
  6. Step 6: Final answer
    x = 2,520.90

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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.