Home / 2,021.10-3,031.55-634.57

Finding the Fourth Proportional to 2,021.10, 3,031.55 and 634.57

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Solution

The fourth proportional to 2,021.10, 3,031.55 and 634.57 is: 951.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.10 : 3,031.55 = 634.57 : x
  2. Step 2: Convert to fraction form
    2,021.10/3,031.55 = 634.57/x
  3. Step 3: Cross multiply
    2,021.10x = 3,031.55 × 634.57
  4. Step 4: Simplify right side
    2,021.10x = 1,923,730.68
  5. Step 5: Solve for x
    x = 1,923,730.68/2,021.10
  6. Step 6: Final answer
    x = 951.82

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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.