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Finding the Fourth Proportional to 2,266.81, 3,398.10 and 881.05

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Solution

The fourth proportional to 2,266.81, 3,398.10 and 881.05 is: 1,320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.81 : 3,398.10 = 881.05 : x
  2. Step 2: Convert to fraction form
    2,266.81/3,398.10 = 881.05/x
  3. Step 3: Cross multiply
    2,266.81x = 3,398.10 × 881.05
  4. Step 4: Simplify right side
    2,266.81x = 2,993,896.01
  5. Step 5: Solve for x
    x = 2,993,896.01/2,266.81
  6. Step 6: Final answer
    x = 1,320.75

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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.