Home / 6,889.28-10,335.20-3,189.06

Finding the Fourth Proportional to 6,889.28, 10,335.20 and 3,189.06

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Solution

The fourth proportional to 6,889.28, 10,335.20 and 3,189.06 is: 4,784.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.28 : 10,335.20 = 3,189.06 : x
  2. Step 2: Convert to fraction form
    6,889.28/10,335.20 = 3,189.06/x
  3. Step 3: Cross multiply
    6,889.28x = 10,335.20 × 3,189.06
  4. Step 4: Simplify right side
    6,889.28x = 32,959,556.97
  5. Step 5: Solve for x
    x = 32,959,556.97/6,889.28
  6. Step 6: Final answer
    x = 4,784.18

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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.