Home / 2,084.30-2,876.22-1,222.20

Finding the Fourth Proportional to 2,084.30, 2,876.22 and 1,222.20

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Solution

The fourth proportional to 2,084.30, 2,876.22 and 1,222.20 is: 1,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.30 : 2,876.22 = 1,222.20 : x
  2. Step 2: Convert to fraction form
    2,084.30/2,876.22 = 1,222.20/x
  3. Step 3: Cross multiply
    2,084.30x = 2,876.22 × 1,222.20
  4. Step 4: Simplify right side
    2,084.30x = 3,515,316.08
  5. Step 5: Solve for x
    x = 3,515,316.08/2,084.30
  6. Step 6: Final answer
    x = 1,686.57

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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.