Home / 3,355.39-5,032.92-890.15

Finding the Fourth Proportional to 3,355.39, 5,032.92 and 890.15

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Solution

The fourth proportional to 3,355.39, 5,032.92 and 890.15 is: 1,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.39 : 5,032.92 = 890.15 : x
  2. Step 2: Convert to fraction form
    3,355.39/5,032.92 = 890.15/x
  3. Step 3: Cross multiply
    3,355.39x = 5,032.92 × 890.15
  4. Step 4: Simplify right side
    3,355.39x = 4,480,053.74
  5. Step 5: Solve for x
    x = 4,480,053.74/3,355.39
  6. Step 6: Final answer
    x = 1,335.18

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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.