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Finding the Fourth Proportional to 1,844.42, 2,767.79 and 748.79

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Solution

The fourth proportional to 1,844.42, 2,767.79 and 748.79 is: 1,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.42 : 2,767.79 = 748.79 : x
  2. Step 2: Convert to fraction form
    1,844.42/2,767.79 = 748.79/x
  3. Step 3: Cross multiply
    1,844.42x = 2,767.79 × 748.79
  4. Step 4: Simplify right side
    1,844.42x = 2,072,475.89
  5. Step 5: Solve for x
    x = 2,072,475.89/1,844.42
  6. Step 6: Final answer
    x = 1,123.65

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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.