Home / 5,115.62-7,064.07-3,230.60

Finding the Fourth Proportional to 5,115.62, 7,064.07 and 3,230.60

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Solution

The fourth proportional to 5,115.62, 7,064.07 and 3,230.60 is: 4,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.62 : 7,064.07 = 3,230.60 : x
  2. Step 2: Convert to fraction form
    5,115.62/7,064.07 = 3,230.60/x
  3. Step 3: Cross multiply
    5,115.62x = 7,064.07 × 3,230.60
  4. Step 4: Simplify right side
    5,115.62x = 22,821,184.54
  5. Step 5: Solve for x
    x = 22,821,184.54/5,115.62
  6. Step 6: Final answer
    x = 4,461.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.