Home / 3,201.36-4,416.64-2,154.12

Finding the Fourth Proportional to 3,201.36, 4,416.64 and 2,154.12

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Solution

The fourth proportional to 3,201.36, 4,416.64 and 2,154.12 is: 2,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.36 : 4,416.64 = 2,154.12 : x
  2. Step 2: Convert to fraction form
    3,201.36/4,416.64 = 2,154.12/x
  3. Step 3: Cross multiply
    3,201.36x = 4,416.64 × 2,154.12
  4. Step 4: Simplify right side
    3,201.36x = 9,513,972.56
  5. Step 5: Solve for x
    x = 9,513,972.56/3,201.36
  6. Step 6: Final answer
    x = 2,971.85

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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.