Home / 3,355.11-5,032.22-890.15

Finding the Fourth Proportional to 3,355.11, 5,032.22 and 890.15

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Solution

The fourth proportional to 3,355.11, 5,032.22 and 890.15 is: 1,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.11 : 5,032.22 = 890.15 : x
  2. Step 2: Convert to fraction form
    3,355.11/5,032.22 = 890.15/x
  3. Step 3: Cross multiply
    3,355.11x = 5,032.22 × 890.15
  4. Step 4: Simplify right side
    3,355.11x = 4,479,401.02
  5. Step 5: Solve for x
    x = 4,479,401.02/3,355.11
  6. Step 6: Final answer
    x = 1,335.10

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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.