Home / 3,610.08-4,981.62-2,116.80

Finding the Fourth Proportional to 3,610.08, 4,981.62 and 2,116.80

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Solution

The fourth proportional to 3,610.08, 4,981.62 and 2,116.80 is: 2,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.08 : 4,981.62 = 2,116.80 : x
  2. Step 2: Convert to fraction form
    3,610.08/4,981.62 = 2,116.80/x
  3. Step 3: Cross multiply
    3,610.08x = 4,981.62 × 2,116.80
  4. Step 4: Simplify right side
    3,610.08x = 10,545,093.22
  5. Step 5: Solve for x
    x = 10,545,093.22/3,610.08
  6. Step 6: Final answer
    x = 2,921.01

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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.