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Finding the Fourth Proportional to 2,350.80, 3,243.80 and 1,302.80

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Solution

The fourth proportional to 2,350.80, 3,243.80 and 1,302.80 is: 1,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,350.80 : 3,243.80 = 1,302.80 : x
  2. Step 2: Convert to fraction form
    2,350.80/3,243.80 = 1,302.80/x
  3. Step 3: Cross multiply
    2,350.80x = 3,243.80 × 1,302.80
  4. Step 4: Simplify right side
    2,350.80x = 4,226,022.64
  5. Step 5: Solve for x
    x = 4,226,022.64/2,350.80
  6. Step 6: Final answer
    x = 1,797.70

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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.