Home / 5,112.16-7,052.40-3,222.88

Finding the Fourth Proportional to 5,112.16, 7,052.40 and 3,222.88

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Solution

The fourth proportional to 5,112.16, 7,052.40 and 3,222.88 is: 4,446.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.16 : 7,052.40 = 3,222.88 : x
  2. Step 2: Convert to fraction form
    5,112.16/7,052.40 = 3,222.88/x
  3. Step 3: Cross multiply
    5,112.16x = 7,052.40 × 3,222.88
  4. Step 4: Simplify right side
    5,112.16x = 22,729,038.91
  5. Step 5: Solve for x
    x = 22,729,038.91/5,112.16
  6. Step 6: Final answer
    x = 4,446.07

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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.