Home / 5,135.10-7,697.43-2,212.62

Finding the Fourth Proportional to 5,135.10, 7,697.43 and 2,212.62

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Solution

The fourth proportional to 5,135.10, 7,697.43 and 2,212.62 is: 3,316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.10 : 7,697.43 = 2,212.62 : x
  2. Step 2: Convert to fraction form
    5,135.10/7,697.43 = 2,212.62/x
  3. Step 3: Cross multiply
    5,135.10x = 7,697.43 × 2,212.62
  4. Step 4: Simplify right side
    5,135.10x = 17,031,487.57
  5. Step 5: Solve for x
    x = 17,031,487.57/5,135.10
  6. Step 6: Final answer
    x = 3,316.68

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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.