Home / 7,280.05-10,910.93-3,115.16

Finding the Fourth Proportional to 7,280.05, 10,910.93 and 3,115.16

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Solution

The fourth proportional to 7,280.05, 10,910.93 and 3,115.16 is: 4,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.05 : 10,910.93 = 3,115.16 : x
  2. Step 2: Convert to fraction form
    7,280.05/10,910.93 = 3,115.16/x
  3. Step 3: Cross multiply
    7,280.05x = 10,910.93 × 3,115.16
  4. Step 4: Simplify right side
    7,280.05x = 33,989,292.70
  5. Step 5: Solve for x
    x = 33,989,292.70/7,280.05
  6. Step 6: Final answer
    x = 4,668.83

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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.