Home / 2,021.01-3,031.51-634.35

Finding the Fourth Proportional to 2,021.01, 3,031.51 and 634.35

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Solution

The fourth proportional to 2,021.01, 3,031.51 and 634.35 is: 951.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.01 : 3,031.51 = 634.35 : x
  2. Step 2: Convert to fraction form
    2,021.01/3,031.51 = 634.35/x
  3. Step 3: Cross multiply
    2,021.01x = 3,031.51 × 634.35
  4. Step 4: Simplify right side
    2,021.01x = 1,923,035.20
  5. Step 5: Solve for x
    x = 1,923,035.20/2,021.01
  6. Step 6: Final answer
    x = 951.52

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Double scale
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Similar ratio
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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.