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Finding the Fourth Proportional to 3,868.22, 5,802.32 and 1,528.94

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Solution

The fourth proportional to 3,868.22, 5,802.32 and 1,528.94 is: 2,293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.22 : 5,802.32 = 1,528.94 : x
  2. Step 2: Convert to fraction form
    3,868.22/5,802.32 = 1,528.94/x
  3. Step 3: Cross multiply
    3,868.22x = 5,802.32 × 1,528.94
  4. Step 4: Simplify right side
    3,868.22x = 8,871,399.14
  5. Step 5: Solve for x
    x = 8,871,399.14/3,868.22
  6. Step 6: Final answer
    x = 2,293.41

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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.