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Finding the Fourth Proportional to 4,871.28, 7,306.92 and 3,903.48

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Solution

The fourth proportional to 4,871.28, 7,306.92 and 3,903.48 is: 5,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.28 : 7,306.92 = 3,903.48 : x
  2. Step 2: Convert to fraction form
    4,871.28/7,306.92 = 3,903.48/x
  3. Step 3: Cross multiply
    4,871.28x = 7,306.92 × 3,903.48
  4. Step 4: Simplify right side
    4,871.28x = 28,522,416.08
  5. Step 5: Solve for x
    x = 28,522,416.08/4,871.28
  6. Step 6: Final answer
    x = 5,855.22

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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.