Home / 5,103.44-7,648.76-2,178.32

Finding the Fourth Proportional to 5,103.44, 7,648.76 and 2,178.32

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Solution

The fourth proportional to 5,103.44, 7,648.76 and 2,178.32 is: 3,264.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.44 : 7,648.76 = 2,178.32 : x
  2. Step 2: Convert to fraction form
    5,103.44/7,648.76 = 2,178.32/x
  3. Step 3: Cross multiply
    5,103.44x = 7,648.76 × 2,178.32
  4. Step 4: Simplify right side
    5,103.44x = 16,661,446.88
  5. Step 5: Solve for x
    x = 16,661,446.88/5,103.44
  6. Step 6: Final answer
    x = 3,264.75

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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.