Home / 3,178.08-4,764.28-1,617.21

Finding the Fourth Proportional to 3,178.08, 4,764.28 and 1,617.21

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Solution

The fourth proportional to 3,178.08, 4,764.28 and 1,617.21 is: 2,424.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.08 : 4,764.28 = 1,617.21 : x
  2. Step 2: Convert to fraction form
    3,178.08/4,764.28 = 1,617.21/x
  3. Step 3: Cross multiply
    3,178.08x = 4,764.28 × 1,617.21
  4. Step 4: Simplify right side
    3,178.08x = 7,704,841.26
  5. Step 5: Solve for x
    x = 7,704,841.26/3,178.08
  6. Step 6: Final answer
    x = 2,424.37

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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.