Home / 5,407.92-8,113.44-2,122.56

Finding the Fourth Proportional to 5,407.92, 8,113.44 and 2,122.56

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Solution

The fourth proportional to 5,407.92, 8,113.44 and 2,122.56 is: 3,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.92 : 8,113.44 = 2,122.56 : x
  2. Step 2: Convert to fraction form
    5,407.92/8,113.44 = 2,122.56/x
  3. Step 3: Cross multiply
    5,407.92x = 8,113.44 × 2,122.56
  4. Step 4: Simplify right side
    5,407.92x = 17,221,263.21
  5. Step 5: Solve for x
    x = 17,221,263.21/5,407.92
  6. Step 6: Final answer
    x = 3,184.45

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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.