Home / 5,515.24-8,239.34-3,942.76

Finding the Fourth Proportional to 5,515.24, 8,239.34 and 3,942.76

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Solution

The fourth proportional to 5,515.24, 8,239.34 and 3,942.76 is: 5,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.24 : 8,239.34 = 3,942.76 : x
  2. Step 2: Convert to fraction form
    5,515.24/8,239.34 = 3,942.76/x
  3. Step 3: Cross multiply
    5,515.24x = 8,239.34 × 3,942.76
  4. Step 4: Simplify right side
    5,515.24x = 32,485,740.18
  5. Step 5: Solve for x
    x = 32,485,740.18/5,515.24
  6. Step 6: Final answer
    x = 5,890.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.