Home / 3,178.11-4,767.37-1,098.30

Finding the Fourth Proportional to 3,178.11, 4,767.37 and 1,098.30

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Solution

The fourth proportional to 3,178.11, 4,767.37 and 1,098.30 is: 1,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.11 : 4,767.37 = 1,098.30 : x
  2. Step 2: Convert to fraction form
    3,178.11/4,767.37 = 1,098.30/x
  3. Step 3: Cross multiply
    3,178.11x = 4,767.37 × 1,098.30
  4. Step 4: Simplify right side
    3,178.11x = 5,236,002.47
  5. Step 5: Solve for x
    x = 5,236,002.47/3,178.11
  6. Step 6: Final answer
    x = 1,647.52

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1.5x scale

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.