Home / 5,262.75-7,262.55-2,872.70

Finding the Fourth Proportional to 5,262.75, 7,262.55 and 2,872.70

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Solution

The fourth proportional to 5,262.75, 7,262.55 and 2,872.70 is: 3,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.75 : 7,262.55 = 2,872.70 : x
  2. Step 2: Convert to fraction form
    5,262.75/7,262.55 = 2,872.70/x
  3. Step 3: Cross multiply
    5,262.75x = 7,262.55 × 2,872.70
  4. Step 4: Simplify right side
    5,262.75x = 20,863,127.39
  5. Step 5: Solve for x
    x = 20,863,127.39/5,262.75
  6. Step 6: Final answer
    x = 3,964.30

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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.