Home / 2,005.36-3,008.57-1,618.87

Finding the Fourth Proportional to 2,005.36, 3,008.57 and 1,618.87

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Solution

The fourth proportional to 2,005.36, 3,008.57 and 1,618.87 is: 2,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.36 : 3,008.57 = 1,618.87 : x
  2. Step 2: Convert to fraction form
    2,005.36/3,008.57 = 1,618.87/x
  3. Step 3: Cross multiply
    2,005.36x = 3,008.57 × 1,618.87
  4. Step 4: Simplify right side
    2,005.36x = 4,870,490.99
  5. Step 5: Solve for x
    x = 4,870,490.99/2,005.36
  6. Step 6: Final answer
    x = 2,428.74

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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.