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Finding the Fourth Proportional to 7,209.81, 10,813.10 and 2,592.81

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Solution

The fourth proportional to 7,209.81, 10,813.10 and 2,592.81 is: 3,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.81 : 10,813.10 = 2,592.81 : x
  2. Step 2: Convert to fraction form
    7,209.81/10,813.10 = 2,592.81/x
  3. Step 3: Cross multiply
    7,209.81x = 10,813.10 × 2,592.81
  4. Step 4: Simplify right side
    7,209.81x = 28,036,300.85
  5. Step 5: Solve for x
    x = 28,036,300.85/7,209.81
  6. Step 6: Final answer
    x = 3,888.63

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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.