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Finding the Fourth Proportional to 1,833.19, 2,749.13 and 662.89

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Solution

The fourth proportional to 1,833.19, 2,749.13 and 662.89 is: 994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,833.19 : 2,749.13 = 662.89 : x
  2. Step 2: Convert to fraction form
    1,833.19/2,749.13 = 662.89/x
  3. Step 3: Cross multiply
    1,833.19x = 2,749.13 × 662.89
  4. Step 4: Simplify right side
    1,833.19x = 1,822,370.79
  5. Step 5: Solve for x
    x = 1,822,370.79/1,833.19
  6. Step 6: Final answer
    x = 994.10

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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.