Home / 5,421.96-8,129.90-3,232.20

Finding the Fourth Proportional to 5,421.96, 8,129.90 and 3,232.20

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Solution

The fourth proportional to 5,421.96, 8,129.90 and 3,232.20 is: 4,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.96 : 8,129.90 = 3,232.20 : x
  2. Step 2: Convert to fraction form
    5,421.96/8,129.90 = 3,232.20/x
  3. Step 3: Cross multiply
    5,421.96x = 8,129.90 × 3,232.20
  4. Step 4: Simplify right side
    5,421.96x = 26,277,462.78
  5. Step 5: Solve for x
    x = 26,277,462.78/5,421.96
  6. Step 6: Final answer
    x = 4,846.49

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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.