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Finding the Fourth Proportional to 7,242.99, 10,866.39 and 2,312.73

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Solution

The fourth proportional to 7,242.99, 10,866.39 and 2,312.73 is: 3,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.99 : 10,866.39 = 2,312.73 : x
  2. Step 2: Convert to fraction form
    7,242.99/10,866.39 = 2,312.73/x
  3. Step 3: Cross multiply
    7,242.99x = 10,866.39 × 2,312.73
  4. Step 4: Simplify right side
    7,242.99x = 25,131,026.14
  5. Step 5: Solve for x
    x = 25,131,026.14/7,242.99
  6. Step 6: Final answer
    x = 3,469.70

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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.