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Finding the Fourth Proportional to 1,832.16, 2,748.48 and 858.48

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Solution

The fourth proportional to 1,832.16, 2,748.48 and 858.48 is: 1,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832.16 : 2,748.48 = 858.48 : x
  2. Step 2: Convert to fraction form
    1,832.16/2,748.48 = 858.48/x
  3. Step 3: Cross multiply
    1,832.16x = 2,748.48 × 858.48
  4. Step 4: Simplify right side
    1,832.16x = 2,359,515.11
  5. Step 5: Solve for x
    x = 2,359,515.11/1,832.16
  6. Step 6: Final answer
    x = 1,287.83

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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.