Home / 2,240.67-3,360.75-680.32

Finding the Fourth Proportional to 2,240.67, 3,360.75 and 680.32

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Solution

The fourth proportional to 2,240.67, 3,360.75 and 680.32 is: 1,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.67 : 3,360.75 = 680.32 : x
  2. Step 2: Convert to fraction form
    2,240.67/3,360.75 = 680.32/x
  3. Step 3: Cross multiply
    2,240.67x = 3,360.75 × 680.32
  4. Step 4: Simplify right side
    2,240.67x = 2,286,385.44
  5. Step 5: Solve for x
    x = 2,286,385.44/2,240.67
  6. Step 6: Final answer
    x = 1,020.40

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1.5x scale

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.