Home / 3,926.86-5,421.66-2,436.86

Finding the Fourth Proportional to 3,926.86, 5,421.66 and 2,436.86

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Solution

The fourth proportional to 3,926.86, 5,421.66 and 2,436.86 is: 3,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.86 : 5,421.66 = 2,436.86 : x
  2. Step 2: Convert to fraction form
    3,926.86/5,421.66 = 2,436.86/x
  3. Step 3: Cross multiply
    3,926.86x = 5,421.66 × 2,436.86
  4. Step 4: Simplify right side
    3,926.86x = 13,211,826.39
  5. Step 5: Solve for x
    x = 13,211,826.39/3,926.86
  6. Step 6: Final answer
    x = 3,364.48

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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.