Home / 3,895.61-5,369.54-2,761.66

Finding the Fourth Proportional to 3,895.61, 5,369.54 and 2,761.66

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Solution

The fourth proportional to 3,895.61, 5,369.54 and 2,761.66 is: 3,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.61 : 5,369.54 = 2,761.66 : x
  2. Step 2: Convert to fraction form
    3,895.61/5,369.54 = 2,761.66/x
  3. Step 3: Cross multiply
    3,895.61x = 5,369.54 × 2,761.66
  4. Step 4: Simplify right side
    3,895.61x = 14,828,843.84
  5. Step 5: Solve for x
    x = 14,828,843.84/3,895.61
  6. Step 6: Final answer
    x = 3,806.55

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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.