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Finding the Fourth Proportional to 6,871.71, 9,482.94 and 3,727.89

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Solution

The fourth proportional to 6,871.71, 9,482.94 and 3,727.89 is: 5,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.71 : 9,482.94 = 3,727.89 : x
  2. Step 2: Convert to fraction form
    6,871.71/9,482.94 = 3,727.89/x
  3. Step 3: Cross multiply
    6,871.71x = 9,482.94 × 3,727.89
  4. Step 4: Simplify right side
    6,871.71x = 35,351,357.20
  5. Step 5: Solve for x
    x = 35,351,357.20/6,871.71
  6. Step 6: Final answer
    x = 5,144.48

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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.