Home / 3,018.92-4,529.19-1,287.68

Finding the Fourth Proportional to 3,018.92, 4,529.19 and 1,287.68

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Solution

The fourth proportional to 3,018.92, 4,529.19 and 1,287.68 is: 1,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.92 : 4,529.19 = 1,287.68 : x
  2. Step 2: Convert to fraction form
    3,018.92/4,529.19 = 1,287.68/x
  3. Step 3: Cross multiply
    3,018.92x = 4,529.19 × 1,287.68
  4. Step 4: Simplify right side
    3,018.92x = 5,832,147.38
  5. Step 5: Solve for x
    x = 5,832,147.38/3,018.92
  6. Step 6: Final answer
    x = 1,931.87

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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.