Home / 3,355.36-5,035.09-2,121.07

Finding the Fourth Proportional to 3,355.36, 5,035.09 and 2,121.07

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Solution

The fourth proportional to 3,355.36, 5,035.09 and 2,121.07 is: 3,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.36 : 5,035.09 = 2,121.07 : x
  2. Step 2: Convert to fraction form
    3,355.36/5,035.09 = 2,121.07/x
  3. Step 3: Cross multiply
    3,355.36x = 5,035.09 × 2,121.07
  4. Step 4: Simplify right side
    3,355.36x = 10,679,760.46
  5. Step 5: Solve for x
    x = 10,679,760.46/3,355.36
  6. Step 6: Final answer
    x = 3,182.90

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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.