Home / 2,830.62-4,217.24-2,691.20

Finding the Fourth Proportional to 2,830.62, 4,217.24 and 2,691.20

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Solution

The fourth proportional to 2,830.62, 4,217.24 and 2,691.20 is: 4,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.62 : 4,217.24 = 2,691.20 : x
  2. Step 2: Convert to fraction form
    2,830.62/4,217.24 = 2,691.20/x
  3. Step 3: Cross multiply
    2,830.62x = 4,217.24 × 2,691.20
  4. Step 4: Simplify right side
    2,830.62x = 11,349,433.38
  5. Step 5: Solve for x
    x = 11,349,433.38/2,830.62
  6. Step 6: Final answer
    x = 4,009.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.