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Finding the Fourth Proportional to 3,235.67, 4,854.21 and 1,287.82

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Solution

The fourth proportional to 3,235.67, 4,854.21 and 1,287.82 is: 1,932.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.67 : 4,854.21 = 1,287.82 : x
  2. Step 2: Convert to fraction form
    3,235.67/4,854.21 = 1,287.82/x
  3. Step 3: Cross multiply
    3,235.67x = 4,854.21 × 1,287.82
  4. Step 4: Simplify right side
    3,235.67x = 6,251,348.72
  5. Step 5: Solve for x
    x = 6,251,348.72/3,235.67
  6. Step 6: Final answer
    x = 1,932.01

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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.