Home / 4,778.87-7,171.07-2,005.29

Finding the Fourth Proportional to 4,778.87, 7,171.07 and 2,005.29

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Solution

The fourth proportional to 4,778.87, 7,171.07 and 2,005.29 is: 3,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.87 : 7,171.07 = 2,005.29 : x
  2. Step 2: Convert to fraction form
    4,778.87/7,171.07 = 2,005.29/x
  3. Step 3: Cross multiply
    4,778.87x = 7,171.07 × 2,005.29
  4. Step 4: Simplify right side
    4,778.87x = 14,380,064.93
  5. Step 5: Solve for x
    x = 14,380,064.93/4,778.87
  6. Step 6: Final answer
    x = 3,009.10

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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.