Home / 2,121.17-2,927.07-1,236.83

Finding the Fourth Proportional to 2,121.17, 2,927.07 and 1,236.83

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Solution

The fourth proportional to 2,121.17, 2,927.07 and 1,236.83 is: 1,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.17 : 2,927.07 = 1,236.83 : x
  2. Step 2: Convert to fraction form
    2,121.17/2,927.07 = 1,236.83/x
  3. Step 3: Cross multiply
    2,121.17x = 2,927.07 × 1,236.83
  4. Step 4: Simplify right side
    2,121.17x = 3,620,273.35
  5. Step 5: Solve for x
    x = 3,620,273.35/2,121.17
  6. Step 6: Final answer
    x = 1,706.74

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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.