Home / 5,005.20-6,901.92-3,512.64

Finding the Fourth Proportional to 5,005.20, 6,901.92 and 3,512.64

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Solution

The fourth proportional to 5,005.20, 6,901.92 and 3,512.64 is: 4,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.20 : 6,901.92 = 3,512.64 : x
  2. Step 2: Convert to fraction form
    5,005.20/6,901.92 = 3,512.64/x
  3. Step 3: Cross multiply
    5,005.20x = 6,901.92 × 3,512.64
  4. Step 4: Simplify right side
    5,005.20x = 24,243,960.27
  5. Step 5: Solve for x
    x = 24,243,960.27/5,005.20
  6. Step 6: Final answer
    x = 4,843.75

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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.