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Finding the Fourth Proportional to 3,888.91, 5,829.57 and 1,548.21

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Solution

The fourth proportional to 3,888.91, 5,829.57 and 1,548.21 is: 2,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.91 : 5,829.57 = 1,548.21 : x
  2. Step 2: Convert to fraction form
    3,888.91/5,829.57 = 1,548.21/x
  3. Step 3: Cross multiply
    3,888.91x = 5,829.57 × 1,548.21
  4. Step 4: Simplify right side
    3,888.91x = 9,025,420.43
  5. Step 5: Solve for x
    x = 9,025,420.43/3,888.91
  6. Step 6: Final answer
    x = 2,320.81

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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.