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Finding the Fourth Proportional to 7,237.86, 10,854.81 and 2,855.22

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Solution

The fourth proportional to 7,237.86, 10,854.81 and 2,855.22 is: 4,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.86 : 10,854.81 = 2,855.22 : x
  2. Step 2: Convert to fraction form
    7,237.86/10,854.81 = 2,855.22/x
  3. Step 3: Cross multiply
    7,237.86x = 10,854.81 × 2,855.22
  4. Step 4: Simplify right side
    7,237.86x = 30,992,870.61
  5. Step 5: Solve for x
    x = 30,992,870.61/7,237.86
  6. Step 6: Final answer
    x = 4,282.05

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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.