Home / 2,680.08-4,020.24-948.96

Finding the Fourth Proportional to 2,680.08, 4,020.24 and 948.96

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Solution

The fourth proportional to 2,680.08, 4,020.24 and 948.96 is: 1,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.08 : 4,020.24 = 948.96 : x
  2. Step 2: Convert to fraction form
    2,680.08/4,020.24 = 948.96/x
  3. Step 3: Cross multiply
    2,680.08x = 4,020.24 × 948.96
  4. Step 4: Simplify right side
    2,680.08x = 3,815,046.95
  5. Step 5: Solve for x
    x = 3,815,046.95/2,680.08
  6. Step 6: Final answer
    x = 1,423.48

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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.