Home / 3,610.11-4,981.74-2,117.91

Finding the Fourth Proportional to 3,610.11, 4,981.74 and 2,117.91

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Solution

The fourth proportional to 3,610.11, 4,981.74 and 2,117.91 is: 2,922.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.11 : 4,981.74 = 2,117.91 : x
  2. Step 2: Convert to fraction form
    3,610.11/4,981.74 = 2,117.91/x
  3. Step 3: Cross multiply
    3,610.11x = 4,981.74 × 2,117.91
  4. Step 4: Simplify right side
    3,610.11x = 10,550,876.96
  5. Step 5: Solve for x
    x = 10,550,876.96/3,610.11
  6. Step 6: Final answer
    x = 2,922.59

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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.