Home / 5,808.24-8,712.36-2,109.78

Finding the Fourth Proportional to 5,808.24, 8,712.36 and 2,109.78

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Solution

The fourth proportional to 5,808.24, 8,712.36 and 2,109.78 is: 3,164.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.24 : 8,712.36 = 2,109.78 : x
  2. Step 2: Convert to fraction form
    5,808.24/8,712.36 = 2,109.78/x
  3. Step 3: Cross multiply
    5,808.24x = 8,712.36 × 2,109.78
  4. Step 4: Simplify right side
    5,808.24x = 18,381,162.88
  5. Step 5: Solve for x
    x = 18,381,162.88/5,808.24
  6. Step 6: Final answer
    x = 3,164.67

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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.