Home / 5,021.38-6,929.56-3,031.55

Finding the Fourth Proportional to 5,021.38, 6,929.56 and 3,031.55

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Solution

The fourth proportional to 5,021.38, 6,929.56 and 3,031.55 is: 4,183.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.38 : 6,929.56 = 3,031.55 : x
  2. Step 2: Convert to fraction form
    5,021.38/6,929.56 = 3,031.55/x
  3. Step 3: Cross multiply
    5,021.38x = 6,929.56 × 3,031.55
  4. Step 4: Simplify right side
    5,021.38x = 21,007,307.62
  5. Step 5: Solve for x
    x = 21,007,307.62/5,021.38
  6. Step 6: Final answer
    x = 4,183.57

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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.