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Finding the Fourth Proportional to 1,835.20, 2,751.18 and 968.68

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Solution

The fourth proportional to 1,835.20, 2,751.18 and 968.68 is: 1,452.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.20 : 2,751.18 = 968.68 : x
  2. Step 2: Convert to fraction form
    1,835.20/2,751.18 = 968.68/x
  3. Step 3: Cross multiply
    1,835.20x = 2,751.18 × 968.68
  4. Step 4: Simplify right side
    1,835.20x = 2,665,013.04
  5. Step 5: Solve for x
    x = 2,665,013.04/1,835.20
  6. Step 6: Final answer
    x = 1,452.16

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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.