Home / 5,421.24-8,131.68-3,667.05

Finding the Fourth Proportional to 5,421.24, 8,131.68 and 3,667.05

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Solution

The fourth proportional to 5,421.24, 8,131.68 and 3,667.05 is: 5,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.24 : 8,131.68 = 3,667.05 : x
  2. Step 2: Convert to fraction form
    5,421.24/8,131.68 = 3,667.05/x
  3. Step 3: Cross multiply
    5,421.24x = 8,131.68 × 3,667.05
  4. Step 4: Simplify right side
    5,421.24x = 29,819,277.14
  5. Step 5: Solve for x
    x = 29,819,277.14/5,421.24
  6. Step 6: Final answer
    x = 5,500.45

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Double scale
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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.