Home / 2,756.94-4,112.85-2,681.61

Finding the Fourth Proportional to 2,756.94, 4,112.85 and 2,681.61

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Solution

The fourth proportional to 2,756.94, 4,112.85 and 2,681.61 is: 4,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.94 : 4,112.85 = 2,681.61 : x
  2. Step 2: Convert to fraction form
    2,756.94/4,112.85 = 2,681.61/x
  3. Step 3: Cross multiply
    2,756.94x = 4,112.85 × 2,681.61
  4. Step 4: Simplify right side
    2,756.94x = 11,029,059.69
  5. Step 5: Solve for x
    x = 11,029,059.69/2,756.94
  6. Step 6: Final answer
    x = 4,000.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.