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Finding the Fourth Proportional to 7,207.80, 10,797.30 and 5,729.51

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Solution

The fourth proportional to 7,207.80, 10,797.30 and 5,729.51 is: 8,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.80 : 10,797.30 = 5,729.51 : x
  2. Step 2: Convert to fraction form
    7,207.80/10,797.30 = 5,729.51/x
  3. Step 3: Cross multiply
    7,207.80x = 10,797.30 × 5,729.51
  4. Step 4: Simplify right side
    7,207.80x = 61,863,265.32
  5. Step 5: Solve for x
    x = 61,863,265.32/7,207.80
  6. Step 6: Final answer
    x = 8,582.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.