Home / 2,612.36-3,912.54-2,196.20

Finding the Fourth Proportional to 2,612.36, 3,912.54 and 2,196.20

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Solution

The fourth proportional to 2,612.36, 3,912.54 and 2,196.20 is: 3,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.36 : 3,912.54 = 2,196.20 : x
  2. Step 2: Convert to fraction form
    2,612.36/3,912.54 = 2,196.20/x
  3. Step 3: Cross multiply
    2,612.36x = 3,912.54 × 2,196.20
  4. Step 4: Simplify right side
    2,612.36x = 8,592,720.35
  5. Step 5: Solve for x
    x = 8,592,720.35/2,612.36
  6. Step 6: Final answer
    x = 3,289.26

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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.