Home / 5,270.50-7,272.66-2,912.32

Finding the Fourth Proportional to 5,270.50, 7,272.66 and 2,912.32

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Solution

The fourth proportional to 5,270.50, 7,272.66 and 2,912.32 is: 4,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.50 : 7,272.66 = 2,912.32 : x
  2. Step 2: Convert to fraction form
    5,270.50/7,272.66 = 2,912.32/x
  3. Step 3: Cross multiply
    5,270.50x = 7,272.66 × 2,912.32
  4. Step 4: Simplify right side
    5,270.50x = 21,180,313.17
  5. Step 5: Solve for x
    x = 21,180,313.17/5,270.50
  6. Step 6: Final answer
    x = 4,018.65

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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.