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Finding the Fourth Proportional to 2,844.80, 4,266.90 and 896.90

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Solution

The fourth proportional to 2,844.80, 4,266.90 and 896.90 is: 1,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,844.80 : 4,266.90 = 896.90 : x
  2. Step 2: Convert to fraction form
    2,844.80/4,266.90 = 896.90/x
  3. Step 3: Cross multiply
    2,844.80x = 4,266.90 × 896.90
  4. Step 4: Simplify right side
    2,844.80x = 3,826,982.61
  5. Step 5: Solve for x
    x = 3,826,982.61/2,844.80
  6. Step 6: Final answer
    x = 1,345.26

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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.