Home / 3,926.52-5,415.75-2,715.66

Finding the Fourth Proportional to 3,926.52, 5,415.75 and 2,715.66

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Solution

The fourth proportional to 3,926.52, 5,415.75 and 2,715.66 is: 3,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.52 : 5,415.75 = 2,715.66 : x
  2. Step 2: Convert to fraction form
    3,926.52/5,415.75 = 2,715.66/x
  3. Step 3: Cross multiply
    3,926.52x = 5,415.75 × 2,715.66
  4. Step 4: Simplify right side
    3,926.52x = 14,707,335.65
  5. Step 5: Solve for x
    x = 14,707,335.65/3,926.52
  6. Step 6: Final answer
    x = 3,745.64

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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.