Home / 3,291.28-4,938.45-1,442.16

Finding the Fourth Proportional to 3,291.28, 4,938.45 and 1,442.16

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Solution

The fourth proportional to 3,291.28, 4,938.45 and 1,442.16 is: 2,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.28 : 4,938.45 = 1,442.16 : x
  2. Step 2: Convert to fraction form
    3,291.28/4,938.45 = 1,442.16/x
  3. Step 3: Cross multiply
    3,291.28x = 4,938.45 × 1,442.16
  4. Step 4: Simplify right side
    3,291.28x = 7,122,035.05
  5. Step 5: Solve for x
    x = 7,122,035.05/3,291.28
  6. Step 6: Final answer
    x = 2,163.91

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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.