Home / 1,647.21-2,453.46-1,613.04

Finding the Fourth Proportional to 1,647.21, 2,453.46 and 1,613.04

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Solution

The fourth proportional to 1,647.21, 2,453.46 and 1,613.04 is: 2,402.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.21 : 2,453.46 = 1,613.04 : x
  2. Step 2: Convert to fraction form
    1,647.21/2,453.46 = 1,613.04/x
  3. Step 3: Cross multiply
    1,647.21x = 2,453.46 × 1,613.04
  4. Step 4: Simplify right side
    1,647.21x = 3,957,529.12
  5. Step 5: Solve for x
    x = 3,957,529.12/1,647.21
  6. Step 6: Final answer
    x = 2,402.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.