Home / 7,383.78-10,189.19-4,239.76

Finding the Fourth Proportional to 7,383.78, 10,189.19 and 4,239.76

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Solution

The fourth proportional to 7,383.78, 10,189.19 and 4,239.76 is: 5,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,383.78 : 10,189.19 = 4,239.76 : x
  2. Step 2: Convert to fraction form
    7,383.78/10,189.19 = 4,239.76/x
  3. Step 3: Cross multiply
    7,383.78x = 10,189.19 × 4,239.76
  4. Step 4: Simplify right side
    7,383.78x = 43,199,720.19
  5. Step 5: Solve for x
    x = 43,199,720.19/7,383.78
  6. Step 6: Final answer
    x = 5,850.62

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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.