Home / 3,886.72-5,364.12-2,314.96

Finding the Fourth Proportional to 3,886.72, 5,364.12 and 2,314.96

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Solution

The fourth proportional to 3,886.72, 5,364.12 and 2,314.96 is: 3,194.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.72 : 5,364.12 = 2,314.96 : x
  2. Step 2: Convert to fraction form
    3,886.72/5,364.12 = 2,314.96/x
  3. Step 3: Cross multiply
    3,886.72x = 5,364.12 × 2,314.96
  4. Step 4: Simplify right side
    3,886.72x = 12,417,723.24
  5. Step 5: Solve for x
    x = 12,417,723.24/3,886.72
  6. Step 6: Final answer
    x = 3,194.91

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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.