Home / 5,021.39-6,929.78-3,031.92

Finding the Fourth Proportional to 5,021.39, 6,929.78 and 3,031.92

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Solution

The fourth proportional to 5,021.39, 6,929.78 and 3,031.92 is: 4,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.39 : 6,929.78 = 3,031.92 : x
  2. Step 2: Convert to fraction form
    5,021.39/6,929.78 = 3,031.92/x
  3. Step 3: Cross multiply
    5,021.39x = 6,929.78 × 3,031.92
  4. Step 4: Simplify right side
    5,021.39x = 21,010,523.42
  5. Step 5: Solve for x
    x = 21,010,523.42/5,021.39
  6. Step 6: Final answer
    x = 4,184.20

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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.