Home / 2,124.06-3,186.06-1,257.75

Finding the Fourth Proportional to 2,124.06, 3,186.06 and 1,257.75

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Solution

The fourth proportional to 2,124.06, 3,186.06 and 1,257.75 is: 1,886.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.06 : 3,186.06 = 1,257.75 : x
  2. Step 2: Convert to fraction form
    2,124.06/3,186.06 = 1,257.75/x
  3. Step 3: Cross multiply
    2,124.06x = 3,186.06 × 1,257.75
  4. Step 4: Simplify right side
    2,124.06x = 4,007,266.97
  5. Step 5: Solve for x
    x = 4,007,266.97/2,124.06
  6. Step 6: Final answer
    x = 1,886.61

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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.