Home / 5,399.72-8,099.58-2,321

Finding the Fourth Proportional to 5,399.72, 8,099.58 and 2,321

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Solution

The fourth proportional to 5,399.72, 8,099.58 and 2,321 is: 3,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.72 : 8,099.58 = 2,321 : x
  2. Step 2: Convert to fraction form
    5,399.72/8,099.58 = 2,321/x
  3. Step 3: Cross multiply
    5,399.72x = 8,099.58 × 2,321
  4. Step 4: Simplify right side
    5,399.72x = 18,799,125.18
  5. Step 5: Solve for x
    x = 18,799,125.18/5,399.72
  6. Step 6: Final answer
    x = 3,481.50

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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.