Home / 3,619.81-5,429.61-1,022.74

Finding the Fourth Proportional to 3,619.81, 5,429.61 and 1,022.74

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Solution

The fourth proportional to 3,619.81, 5,429.61 and 1,022.74 is: 1,534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.81 : 5,429.61 = 1,022.74 : x
  2. Step 2: Convert to fraction form
    3,619.81/5,429.61 = 1,022.74/x
  3. Step 3: Cross multiply
    3,619.81x = 5,429.61 × 1,022.74
  4. Step 4: Simplify right side
    3,619.81x = 5,553,079.33
  5. Step 5: Solve for x
    x = 5,553,079.33/3,619.81
  6. Step 6: Final answer
    x = 1,534.08

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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.