Home / 3,616.81-5,419.54-2,155.17

Finding the Fourth Proportional to 3,616.81, 5,419.54 and 2,155.17

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Solution

The fourth proportional to 3,616.81, 5,419.54 and 2,155.17 is: 3,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.81 : 5,419.54 = 2,155.17 : x
  2. Step 2: Convert to fraction form
    3,616.81/5,419.54 = 2,155.17/x
  3. Step 3: Cross multiply
    3,616.81x = 5,419.54 × 2,155.17
  4. Step 4: Simplify right side
    3,616.81x = 11,680,030.02
  5. Step 5: Solve for x
    x = 11,680,030.02/3,616.81
  6. Step 6: Final answer
    x = 3,229.37

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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.