Home / 5,816.66-8,719.78-2,116.28

Finding the Fourth Proportional to 5,816.66, 8,719.78 and 2,116.28

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Solution

The fourth proportional to 5,816.66, 8,719.78 and 2,116.28 is: 3,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,816.66 : 8,719.78 = 2,116.28 : x
  2. Step 2: Convert to fraction form
    5,816.66/8,719.78 = 2,116.28/x
  3. Step 3: Cross multiply
    5,816.66x = 8,719.78 × 2,116.28
  4. Step 4: Simplify right side
    5,816.66x = 18,453,447.13
  5. Step 5: Solve for x
    x = 18,453,447.13/5,816.66
  6. Step 6: Final answer
    x = 3,172.52

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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.