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Finding the Fourth Proportional to 3,182.79, 4,773.63 and 873.75

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Solution

The fourth proportional to 3,182.79, 4,773.63 and 873.75 is: 1,310.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.79 : 4,773.63 = 873.75 : x
  2. Step 2: Convert to fraction form
    3,182.79/4,773.63 = 873.75/x
  3. Step 3: Cross multiply
    3,182.79x = 4,773.63 × 873.75
  4. Step 4: Simplify right side
    3,182.79x = 4,170,959.21
  5. Step 5: Solve for x
    x = 4,170,959.21/3,182.79
  6. Step 6: Final answer
    x = 1,310.47

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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.