Home / 5,389.88-8,087.16-2,271.92

Finding the Fourth Proportional to 5,389.88, 8,087.16 and 2,271.92

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Solution

The fourth proportional to 5,389.88, 8,087.16 and 2,271.92 is: 3,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.88 : 8,087.16 = 2,271.92 : x
  2. Step 2: Convert to fraction form
    5,389.88/8,087.16 = 2,271.92/x
  3. Step 3: Cross multiply
    5,389.88x = 8,087.16 × 2,271.92
  4. Step 4: Simplify right side
    5,389.88x = 18,373,380.55
  5. Step 5: Solve for x
    x = 18,373,380.55/5,389.88
  6. Step 6: Final answer
    x = 3,408.87

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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.