Home / 3,909.69-5,395.03-2,316.02

Finding the Fourth Proportional to 3,909.69, 5,395.03 and 2,316.02

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Solution

The fourth proportional to 3,909.69, 5,395.03 and 2,316.02 is: 3,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.69 : 5,395.03 = 2,316.02 : x
  2. Step 2: Convert to fraction form
    3,909.69/5,395.03 = 2,316.02/x
  3. Step 3: Cross multiply
    3,909.69x = 5,395.03 × 2,316.02
  4. Step 4: Simplify right side
    3,909.69x = 12,494,964.62
  5. Step 5: Solve for x
    x = 12,494,964.62/3,909.69
  6. Step 6: Final answer
    x = 3,195.90

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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.