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Finding the Fourth Proportional to 3,888.46, 5,365.19 and 3,261.52

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Solution

The fourth proportional to 3,888.46, 5,365.19 and 3,261.52 is: 4,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.46 : 5,365.19 = 3,261.52 : x
  2. Step 2: Convert to fraction form
    3,888.46/5,365.19 = 3,261.52/x
  3. Step 3: Cross multiply
    3,888.46x = 5,365.19 × 3,261.52
  4. Step 4: Simplify right side
    3,888.46x = 17,498,674.49
  5. Step 5: Solve for x
    x = 17,498,674.49/3,888.46
  6. Step 6: Final answer
    x = 4,500.16

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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.