Home / 5,353.73-7,388.07-3,115.70

Finding the Fourth Proportional to 5,353.73, 7,388.07 and 3,115.70

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Solution

The fourth proportional to 5,353.73, 7,388.07 and 3,115.70 is: 4,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.73 : 7,388.07 = 3,115.70 : x
  2. Step 2: Convert to fraction form
    5,353.73/7,388.07 = 3,115.70/x
  3. Step 3: Cross multiply
    5,353.73x = 7,388.07 × 3,115.70
  4. Step 4: Simplify right side
    5,353.73x = 23,019,009.70
  5. Step 5: Solve for x
    x = 23,019,009.70/5,353.73
  6. Step 6: Final answer
    x = 4,299.62

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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.