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Finding the Fourth Proportional to 7,110.67, 10,661.44 and 2,953.55

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Solution

The fourth proportional to 7,110.67, 10,661.44 and 2,953.55 is: 4,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.67 : 10,661.44 = 2,953.55 : x
  2. Step 2: Convert to fraction form
    7,110.67/10,661.44 = 2,953.55/x
  3. Step 3: Cross multiply
    7,110.67x = 10,661.44 × 2,953.55
  4. Step 4: Simplify right side
    7,110.67x = 31,489,035.42
  5. Step 5: Solve for x
    x = 31,489,035.42/7,110.67
  6. Step 6: Final answer
    x = 4,428.42

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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.