Home / 3,355.32-5,033.39-890.19

Finding the Fourth Proportional to 3,355.32, 5,033.39 and 890.19

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Solution

The fourth proportional to 3,355.32, 5,033.39 and 890.19 is: 1,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.32 : 5,033.39 = 890.19 : x
  2. Step 2: Convert to fraction form
    3,355.32/5,033.39 = 890.19/x
  3. Step 3: Cross multiply
    3,355.32x = 5,033.39 × 890.19
  4. Step 4: Simplify right side
    3,355.32x = 4,480,673.44
  5. Step 5: Solve for x
    x = 4,480,673.44/3,355.32
  6. Step 6: Final answer
    x = 1,335.39

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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.