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Finding the Fourth Proportional to 1,821.69, 2,732.13 and 588.78

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Solution

The fourth proportional to 1,821.69, 2,732.13 and 588.78 is: 883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.69 : 2,732.13 = 588.78 : x
  2. Step 2: Convert to fraction form
    1,821.69/2,732.13 = 588.78/x
  3. Step 3: Cross multiply
    1,821.69x = 2,732.13 × 588.78
  4. Step 4: Simplify right side
    1,821.69x = 1,608,623.50
  5. Step 5: Solve for x
    x = 1,608,623.50/1,821.69
  6. Step 6: Final answer
    x = 883.04

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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.