Home / 5,230.05-7,217.15-4,812.09

Finding the Fourth Proportional to 5,230.05, 7,217.15 and 4,812.09

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Solution

The fourth proportional to 5,230.05, 7,217.15 and 4,812.09 is: 6,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.05 : 7,217.15 = 4,812.09 : x
  2. Step 2: Convert to fraction form
    5,230.05/7,217.15 = 4,812.09/x
  3. Step 3: Cross multiply
    5,230.05x = 7,217.15 × 4,812.09
  4. Step 4: Simplify right side
    5,230.05x = 34,729,551.28
  5. Step 5: Solve for x
    x = 34,729,551.28/5,230.05
  6. Step 6: Final answer
    x = 6,640.39

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Half scale
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Double scale
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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.