Home / 5,422.88-8,122.98-3,465.12

Finding the Fourth Proportional to 5,422.88, 8,122.98 and 3,465.12

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Solution

The fourth proportional to 5,422.88, 8,122.98 and 3,465.12 is: 5,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.88 : 8,122.98 = 3,465.12 : x
  2. Step 2: Convert to fraction form
    5,422.88/8,122.98 = 3,465.12/x
  3. Step 3: Cross multiply
    5,422.88x = 8,122.98 × 3,465.12
  4. Step 4: Simplify right side
    5,422.88x = 28,147,100.46
  5. Step 5: Solve for x
    x = 28,147,100.46/5,422.88
  6. Step 6: Final answer
    x = 5,190.43

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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.