Home / 5,115.66-7,056.63-3,226.57

Finding the Fourth Proportional to 5,115.66, 7,056.63 and 3,226.57

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Solution

The fourth proportional to 5,115.66, 7,056.63 and 3,226.57 is: 4,450.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.66 : 7,056.63 = 3,226.57 : x
  2. Step 2: Convert to fraction form
    5,115.66/7,056.63 = 3,226.57/x
  3. Step 3: Cross multiply
    5,115.66x = 7,056.63 × 3,226.57
  4. Step 4: Simplify right side
    5,115.66x = 22,768,662.25
  5. Step 5: Solve for x
    x = 22,768,662.25/5,115.66
  6. Step 6: Final answer
    x = 4,450.77

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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.