Home / 3,318.10-4,578.68-1,826.08

Finding the Fourth Proportional to 3,318.10, 4,578.68 and 1,826.08

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Solution

The fourth proportional to 3,318.10, 4,578.68 and 1,826.08 is: 2,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.10 : 4,578.68 = 1,826.08 : x
  2. Step 2: Convert to fraction form
    3,318.10/4,578.68 = 1,826.08/x
  3. Step 3: Cross multiply
    3,318.10x = 4,578.68 × 1,826.08
  4. Step 4: Simplify right side
    3,318.10x = 8,361,018.82
  5. Step 5: Solve for x
    x = 8,361,018.82/3,318.10
  6. Step 6: Final answer
    x = 2,519.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.