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Finding the Fourth Proportional to 2,000.84, 2,760.80 and 1,161.43

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Solution

The fourth proportional to 2,000.84, 2,760.80 and 1,161.43 is: 1,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.84 : 2,760.80 = 1,161.43 : x
  2. Step 2: Convert to fraction form
    2,000.84/2,760.80 = 1,161.43/x
  3. Step 3: Cross multiply
    2,000.84x = 2,760.80 × 1,161.43
  4. Step 4: Simplify right side
    2,000.84x = 3,206,475.94
  5. Step 5: Solve for x
    x = 3,206,475.94/2,000.84
  6. Step 6: Final answer
    x = 1,602.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.