Home / 7,801.22-11,695.71-3,908.18

Finding the Fourth Proportional to 7,801.22, 11,695.71 and 3,908.18

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Solution

The fourth proportional to 7,801.22, 11,695.71 and 3,908.18 is: 5,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.22 : 11,695.71 = 3,908.18 : x
  2. Step 2: Convert to fraction form
    7,801.22/11,695.71 = 3,908.18/x
  3. Step 3: Cross multiply
    7,801.22x = 11,695.71 × 3,908.18
  4. Step 4: Simplify right side
    7,801.22x = 45,708,939.91
  5. Step 5: Solve for x
    x = 45,708,939.91/7,801.22
  6. Step 6: Final answer
    x = 5,859.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.