Home / 3,318.78-4,579.98-1,826.69

Finding the Fourth Proportional to 3,318.78, 4,579.98 and 1,826.69

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Solution

The fourth proportional to 3,318.78, 4,579.98 and 1,826.69 is: 2,520.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.78 : 4,579.98 = 1,826.69 : x
  2. Step 2: Convert to fraction form
    3,318.78/4,579.98 = 1,826.69/x
  3. Step 3: Cross multiply
    3,318.78x = 4,579.98 × 1,826.69
  4. Step 4: Simplify right side
    3,318.78x = 8,366,203.67
  5. Step 5: Solve for x
    x = 8,366,203.67/3,318.78
  6. Step 6: Final answer
    x = 2,520.87

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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.