Home / 2,127.75-2,936.30-1,244.15

Finding the Fourth Proportional to 2,127.75, 2,936.30 and 1,244.15

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Solution

The fourth proportional to 2,127.75, 2,936.30 and 1,244.15 is: 1,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.75 : 2,936.30 = 1,244.15 : x
  2. Step 2: Convert to fraction form
    2,127.75/2,936.30 = 1,244.15/x
  3. Step 3: Cross multiply
    2,127.75x = 2,936.30 × 1,244.15
  4. Step 4: Simplify right side
    2,127.75x = 3,653,176.74
  5. Step 5: Solve for x
    x = 3,653,176.74/2,127.75
  6. Step 6: Final answer
    x = 1,716.92

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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.