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Finding the Fourth Proportional to 3,877.48, 5,815.58 and 3,223.56

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Solution

The fourth proportional to 3,877.48, 5,815.58 and 3,223.56 is: 4,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.48 : 5,815.58 = 3,223.56 : x
  2. Step 2: Convert to fraction form
    3,877.48/5,815.58 = 3,223.56/x
  3. Step 3: Cross multiply
    3,877.48x = 5,815.58 × 3,223.56
  4. Step 4: Simplify right side
    3,877.48x = 18,746,871.06
  5. Step 5: Solve for x
    x = 18,746,871.06/3,877.48
  6. Step 6: Final answer
    x = 4,834.81

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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.