Home / 5,211.66-7,192.71-3,115.74

Finding the Fourth Proportional to 5,211.66, 7,192.71 and 3,115.74

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Solution

The fourth proportional to 5,211.66, 7,192.71 and 3,115.74 is: 4,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.66 : 7,192.71 = 3,115.74 : x
  2. Step 2: Convert to fraction form
    5,211.66/7,192.71 = 3,115.74/x
  3. Step 3: Cross multiply
    5,211.66x = 7,192.71 × 3,115.74
  4. Step 4: Simplify right side
    5,211.66x = 22,410,614.26
  5. Step 5: Solve for x
    x = 22,410,614.26/5,211.66
  6. Step 6: Final answer
    x = 4,300.09

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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.