Home / 3,808.22-5,715.21-1,618.48

Finding the Fourth Proportional to 3,808.22, 5,715.21 and 1,618.48

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Solution

The fourth proportional to 3,808.22, 5,715.21 and 1,618.48 is: 2,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.22 : 5,715.21 = 1,618.48 : x
  2. Step 2: Convert to fraction form
    3,808.22/5,715.21 = 1,618.48/x
  3. Step 3: Cross multiply
    3,808.22x = 5,715.21 × 1,618.48
  4. Step 4: Simplify right side
    3,808.22x = 9,249,953.08
  5. Step 5: Solve for x
    x = 9,249,953.08/3,808.22
  6. Step 6: Final answer
    x = 2,428.94

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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.