Home / 7,207.12-10,809.77-1,942.55

Finding the Fourth Proportional to 7,207.12, 10,809.77 and 1,942.55

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Solution

The fourth proportional to 7,207.12, 10,809.77 and 1,942.55 is: 2,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.12 : 10,809.77 = 1,942.55 : x
  2. Step 2: Convert to fraction form
    7,207.12/10,809.77 = 1,942.55/x
  3. Step 3: Cross multiply
    7,207.12x = 10,809.77 × 1,942.55
  4. Step 4: Simplify right side
    7,207.12x = 20,998,464.66
  5. Step 5: Solve for x
    x = 20,998,464.66/7,207.12
  6. Step 6: Final answer
    x = 2,913.57

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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.