Home / 5,227.86-7,213.34-2,990.46

Finding the Fourth Proportional to 5,227.86, 7,213.34 and 2,990.46

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Solution

The fourth proportional to 5,227.86, 7,213.34 and 2,990.46 is: 4,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.86 : 7,213.34 = 2,990.46 : x
  2. Step 2: Convert to fraction form
    5,227.86/7,213.34 = 2,990.46/x
  3. Step 3: Cross multiply
    5,227.86x = 7,213.34 × 2,990.46
  4. Step 4: Simplify right side
    5,227.86x = 21,571,204.74
  5. Step 5: Solve for x
    x = 21,571,204.74/5,227.86
  6. Step 6: Final answer
    x = 4,126.20

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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.