Home / 5,305.92-7,919.66-4,977.60

Finding the Fourth Proportional to 5,305.92, 7,919.66 and 4,977.60

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Solution

The fourth proportional to 5,305.92, 7,919.66 and 4,977.60 is: 7,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.92 : 7,919.66 = 4,977.60 : x
  2. Step 2: Convert to fraction form
    5,305.92/7,919.66 = 4,977.60/x
  3. Step 3: Cross multiply
    5,305.92x = 7,919.66 × 4,977.60
  4. Step 4: Simplify right side
    5,305.92x = 39,420,899.62
  5. Step 5: Solve for x
    x = 39,420,899.62/5,305.92
  6. Step 6: Final answer
    x = 7,429.61

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1.5x scale

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.