Home / 2,408.12-3,321.36-1,663.32

Finding the Fourth Proportional to 2,408.12, 3,321.36 and 1,663.32

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Solution

The fourth proportional to 2,408.12, 3,321.36 and 1,663.32 is: 2,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.12 : 3,321.36 = 1,663.32 : x
  2. Step 2: Convert to fraction form
    2,408.12/3,321.36 = 1,663.32/x
  3. Step 3: Cross multiply
    2,408.12x = 3,321.36 × 1,663.32
  4. Step 4: Simplify right side
    2,408.12x = 5,524,484.52
  5. Step 5: Solve for x
    x = 5,524,484.52/2,408.12
  6. Step 6: Final answer
    x = 2,294.11

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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.