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Finding the Fourth Proportional to 2,199.07, 3,298.62 and 900.54

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Solution

The fourth proportional to 2,199.07, 3,298.62 and 900.54 is: 1,350.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.07 : 3,298.62 = 900.54 : x
  2. Step 2: Convert to fraction form
    2,199.07/3,298.62 = 900.54/x
  3. Step 3: Cross multiply
    2,199.07x = 3,298.62 × 900.54
  4. Step 4: Simplify right side
    2,199.07x = 2,970,539.25
  5. Step 5: Solve for x
    x = 2,970,539.25/2,199.07
  6. Step 6: Final answer
    x = 1,350.82

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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.