Home / 5,717.20-7,889.84-3,479.16

Finding the Fourth Proportional to 5,717.20, 7,889.84 and 3,479.16

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Solution

The fourth proportional to 5,717.20, 7,889.84 and 3,479.16 is: 4,801.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.20 : 7,889.84 = 3,479.16 : x
  2. Step 2: Convert to fraction form
    5,717.20/7,889.84 = 3,479.16/x
  3. Step 3: Cross multiply
    5,717.20x = 7,889.84 × 3,479.16
  4. Step 4: Simplify right side
    5,717.20x = 27,450,015.73
  5. Step 5: Solve for x
    x = 27,450,015.73/5,717.20
  6. Step 6: Final answer
    x = 4,801.30

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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.