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Finding the Fourth Proportional to 3,884.76, 5,358.54 and 2,488.44

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Solution

The fourth proportional to 3,884.76, 5,358.54 and 2,488.44 is: 3,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.76 : 5,358.54 = 2,488.44 : x
  2. Step 2: Convert to fraction form
    3,884.76/5,358.54 = 2,488.44/x
  3. Step 3: Cross multiply
    3,884.76x = 5,358.54 × 2,488.44
  4. Step 4: Simplify right side
    3,884.76x = 13,334,405.28
  5. Step 5: Solve for x
    x = 13,334,405.28/3,884.76
  6. Step 6: Final answer
    x = 3,432.49

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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.