Home / 1,608.14-2,219.20-899.94

Finding the Fourth Proportional to 1,608.14, 2,219.20 and 899.94

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Solution

The fourth proportional to 1,608.14, 2,219.20 and 899.94 is: 1,241.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.14 : 2,219.20 = 899.94 : x
  2. Step 2: Convert to fraction form
    1,608.14/2,219.20 = 899.94/x
  3. Step 3: Cross multiply
    1,608.14x = 2,219.20 × 899.94
  4. Step 4: Simplify right side
    1,608.14x = 1,997,146.85
  5. Step 5: Solve for x
    x = 1,997,146.85/1,608.14
  6. Step 6: Final answer
    x = 1,241.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.