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Finding the Fourth Proportional to 3,353.92, 5,028 and 1,300.80

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Solution

The fourth proportional to 3,353.92, 5,028 and 1,300.80 is: 1,950.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.92 : 5,028 = 1,300.80 : x
  2. Step 2: Convert to fraction form
    3,353.92/5,028 = 1,300.80/x
  3. Step 3: Cross multiply
    3,353.92x = 5,028 × 1,300.80
  4. Step 4: Simplify right side
    3,353.92x = 6,540,422.40
  5. Step 5: Solve for x
    x = 6,540,422.40/3,353.92
  6. Step 6: Final answer
    x = 1,950.08

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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.