Home / 5,316.27-7,971.78-1,984.38

Finding the Fourth Proportional to 5,316.27, 7,971.78 and 1,984.38

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Solution

The fourth proportional to 5,316.27, 7,971.78 and 1,984.38 is: 2,975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.27 : 7,971.78 = 1,984.38 : x
  2. Step 2: Convert to fraction form
    5,316.27/7,971.78 = 1,984.38/x
  3. Step 3: Cross multiply
    5,316.27x = 7,971.78 × 1,984.38
  4. Step 4: Simplify right side
    5,316.27x = 15,819,040.80
  5. Step 5: Solve for x
    x = 15,819,040.80/5,316.27
  6. Step 6: Final answer
    x = 2,975.59

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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.