Home / 2,116.92-3,176.46-1,812.36

Finding the Fourth Proportional to 2,116.92, 3,176.46 and 1,812.36

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Solution

The fourth proportional to 2,116.92, 3,176.46 and 1,812.36 is: 2,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.92 : 3,176.46 = 1,812.36 : x
  2. Step 2: Convert to fraction form
    2,116.92/3,176.46 = 1,812.36/x
  3. Step 3: Cross multiply
    2,116.92x = 3,176.46 × 1,812.36
  4. Step 4: Simplify right side
    2,116.92x = 5,756,889.05
  5. Step 5: Solve for x
    x = 5,756,889.05/2,116.92
  6. Step 6: Final answer
    x = 2,719.46

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1.5x scale

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.