Home / 5,316.94-7,970.19-1,982.75

Finding the Fourth Proportional to 5,316.94, 7,970.19 and 1,982.75

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Solution

The fourth proportional to 5,316.94, 7,970.19 and 1,982.75 is: 2,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.94 : 7,970.19 = 1,982.75 : x
  2. Step 2: Convert to fraction form
    5,316.94/7,970.19 = 1,982.75/x
  3. Step 3: Cross multiply
    5,316.94x = 7,970.19 × 1,982.75
  4. Step 4: Simplify right side
    5,316.94x = 15,802,894.22
  5. Step 5: Solve for x
    x = 15,802,894.22/5,316.94
  6. Step 6: Final answer
    x = 2,972.18

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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.