Home / 5,378.78-7,419.48-3,252.80

Finding the Fourth Proportional to 5,378.78, 7,419.48 and 3,252.80

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Solution

The fourth proportional to 5,378.78, 7,419.48 and 3,252.80 is: 4,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.78 : 7,419.48 = 3,252.80 : x
  2. Step 2: Convert to fraction form
    5,378.78/7,419.48 = 3,252.80/x
  3. Step 3: Cross multiply
    5,378.78x = 7,419.48 × 3,252.80
  4. Step 4: Simplify right side
    5,378.78x = 24,134,084.54
  5. Step 5: Solve for x
    x = 24,134,084.54/5,378.78
  6. Step 6: Final answer
    x = 4,486.91

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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.