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Finding the Fourth Proportional to 3,550.98, 5,316.42 and 1,881.30

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Solution

The fourth proportional to 3,550.98, 5,316.42 and 1,881.30 is: 2,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.98 : 5,316.42 = 1,881.30 : x
  2. Step 2: Convert to fraction form
    3,550.98/5,316.42 = 1,881.30/x
  3. Step 3: Cross multiply
    3,550.98x = 5,316.42 × 1,881.30
  4. Step 4: Simplify right side
    3,550.98x = 10,001,780.95
  5. Step 5: Solve for x
    x = 10,001,780.95/3,550.98
  6. Step 6: Final answer
    x = 2,816.63

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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.