Home / 3,639.13-5,457.78-1,173.42

Finding the Fourth Proportional to 3,639.13, 5,457.78 and 1,173.42

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Solution

The fourth proportional to 3,639.13, 5,457.78 and 1,173.42 is: 1,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.13 : 5,457.78 = 1,173.42 : x
  2. Step 2: Convert to fraction form
    3,639.13/5,457.78 = 1,173.42/x
  3. Step 3: Cross multiply
    3,639.13x = 5,457.78 × 1,173.42
  4. Step 4: Simplify right side
    3,639.13x = 6,404,268.21
  5. Step 5: Solve for x
    x = 6,404,268.21/3,639.13
  6. Step 6: Final answer
    x = 1,759.84

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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.