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Finding the Fourth Proportional to 7,343.58, 10,133.88 and 3,986.31

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Solution

The fourth proportional to 7,343.58, 10,133.88 and 3,986.31 is: 5,500.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.58 : 10,133.88 = 3,986.31 : x
  2. Step 2: Convert to fraction form
    7,343.58/10,133.88 = 3,986.31/x
  3. Step 3: Cross multiply
    7,343.58x = 10,133.88 × 3,986.31
  4. Step 4: Simplify right side
    7,343.58x = 40,396,810.24
  5. Step 5: Solve for x
    x = 40,396,810.24/7,343.58
  6. Step 6: Final answer
    x = 5,500.97

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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.