Home / 2,213.08-3,311.42-1,948.28

Finding the Fourth Proportional to 2,213.08, 3,311.42 and 1,948.28

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Solution

The fourth proportional to 2,213.08, 3,311.42 and 1,948.28 is: 2,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.08 : 3,311.42 = 1,948.28 : x
  2. Step 2: Convert to fraction form
    2,213.08/3,311.42 = 1,948.28/x
  3. Step 3: Cross multiply
    2,213.08x = 3,311.42 × 1,948.28
  4. Step 4: Simplify right side
    2,213.08x = 6,451,573.36
  5. Step 5: Solve for x
    x = 6,451,573.36/2,213.08
  6. Step 6: Final answer
    x = 2,915.20

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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.