Home / 5,407.24-8,105.74-2,122.44

Finding the Fourth Proportional to 5,407.24, 8,105.74 and 2,122.44

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Solution

The fourth proportional to 5,407.24, 8,105.74 and 2,122.44 is: 3,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.24 : 8,105.74 = 2,122.44 : x
  2. Step 2: Convert to fraction form
    5,407.24/8,105.74 = 2,122.44/x
  3. Step 3: Cross multiply
    5,407.24x = 8,105.74 × 2,122.44
  4. Step 4: Simplify right side
    5,407.24x = 17,203,946.81
  5. Step 5: Solve for x
    x = 17,203,946.81/5,407.24
  6. Step 6: Final answer
    x = 3,181.65

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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.