Home / 5,931.75-8,189.62-3,808.19

Finding the Fourth Proportional to 5,931.75, 8,189.62 and 3,808.19

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Solution

The fourth proportional to 5,931.75, 8,189.62 and 3,808.19 is: 5,257.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.75 : 8,189.62 = 3,808.19 : x
  2. Step 2: Convert to fraction form
    5,931.75/8,189.62 = 3,808.19/x
  3. Step 3: Cross multiply
    5,931.75x = 8,189.62 × 3,808.19
  4. Step 4: Simplify right side
    5,931.75x = 31,187,628.99
  5. Step 5: Solve for x
    x = 31,187,628.99/5,931.75
  6. Step 6: Final answer
    x = 5,257.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.