Home / 5,031.66-6,939.16-3,143.42

Finding the Fourth Proportional to 5,031.66, 6,939.16 and 3,143.42

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Solution

The fourth proportional to 5,031.66, 6,939.16 and 3,143.42 is: 4,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.66 : 6,939.16 = 3,143.42 : x
  2. Step 2: Convert to fraction form
    5,031.66/6,939.16 = 3,143.42/x
  3. Step 3: Cross multiply
    5,031.66x = 6,939.16 × 3,143.42
  4. Step 4: Simplify right side
    5,031.66x = 21,812,694.33
  5. Step 5: Solve for x
    x = 21,812,694.33/5,031.66
  6. Step 6: Final answer
    x = 4,335.09

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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.