Home / 2,121.06-3,176.10-2,068.80

Finding the Fourth Proportional to 2,121.06, 3,176.10 and 2,068.80

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Solution

The fourth proportional to 2,121.06, 3,176.10 and 2,068.80 is: 3,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.06 : 3,176.10 = 2,068.80 : x
  2. Step 2: Convert to fraction form
    2,121.06/3,176.10 = 2,068.80/x
  3. Step 3: Cross multiply
    2,121.06x = 3,176.10 × 2,068.80
  4. Step 4: Simplify right side
    2,121.06x = 6,570,715.68
  5. Step 5: Solve for x
    x = 6,570,715.68/2,121.06
  6. Step 6: Final answer
    x = 3,097.85

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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.