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Finding the Fourth Proportional to 1,408.18, 1,944.03 and 884.38

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Solution

The fourth proportional to 1,408.18, 1,944.03 and 884.38 is: 1,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408.18 : 1,944.03 = 884.38 : x
  2. Step 2: Convert to fraction form
    1,408.18/1,944.03 = 884.38/x
  3. Step 3: Cross multiply
    1,408.18x = 1,944.03 × 884.38
  4. Step 4: Simplify right side
    1,408.18x = 1,719,261.25
  5. Step 5: Solve for x
    x = 1,719,261.25/1,408.18
  6. Step 6: Final answer
    x = 1,220.91

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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.