Home / 2,830.89-4,227.26-2,311.91

Finding the Fourth Proportional to 2,830.89, 4,227.26 and 2,311.91

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Solution

The fourth proportional to 2,830.89, 4,227.26 and 2,311.91 is: 3,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.89 : 4,227.26 = 2,311.91 : x
  2. Step 2: Convert to fraction form
    2,830.89/4,227.26 = 2,311.91/x
  3. Step 3: Cross multiply
    2,830.89x = 4,227.26 × 2,311.91
  4. Step 4: Simplify right side
    2,830.89x = 9,773,044.67
  5. Step 5: Solve for x
    x = 9,773,044.67/2,830.89
  6. Step 6: Final answer
    x = 3,452.29

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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.