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Finding the Fourth Proportional to 3,350.40, 5,022 and 1,402.08

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Solution

The fourth proportional to 3,350.40, 5,022 and 1,402.08 is: 2,101.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,350.40 : 5,022 = 1,402.08 : x
  2. Step 2: Convert to fraction form
    3,350.40/5,022 = 1,402.08/x
  3. Step 3: Cross multiply
    3,350.40x = 5,022 × 1,402.08
  4. Step 4: Simplify right side
    3,350.40x = 7,041,245.76
  5. Step 5: Solve for x
    x = 7,041,245.76/3,350.40
  6. Step 6: Final answer
    x = 2,101.61

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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.