Home / 5,222.42-7,207.16-2,864.65

Finding the Fourth Proportional to 5,222.42, 7,207.16 and 2,864.65

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Solution

The fourth proportional to 5,222.42, 7,207.16 and 2,864.65 is: 3,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.42 : 7,207.16 = 2,864.65 : x
  2. Step 2: Convert to fraction form
    5,222.42/7,207.16 = 2,864.65/x
  3. Step 3: Cross multiply
    5,222.42x = 7,207.16 × 2,864.65
  4. Step 4: Simplify right side
    5,222.42x = 20,645,990.89
  5. Step 5: Solve for x
    x = 20,645,990.89/5,222.42
  6. Step 6: Final answer
    x = 3,953.34

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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.