Home / 5,281.69-7,916.39-2,319.22

Finding the Fourth Proportional to 5,281.69, 7,916.39 and 2,319.22

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Solution

The fourth proportional to 5,281.69, 7,916.39 and 2,319.22 is: 3,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.69 : 7,916.39 = 2,319.22 : x
  2. Step 2: Convert to fraction form
    5,281.69/7,916.39 = 2,319.22/x
  3. Step 3: Cross multiply
    5,281.69x = 7,916.39 × 2,319.22
  4. Step 4: Simplify right side
    5,281.69x = 18,359,850.02
  5. Step 5: Solve for x
    x = 18,359,850.02/5,281.69
  6. Step 6: Final answer
    x = 3,476.13

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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.