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Finding the Fourth Proportional to 7,104.53, 10,656.79 and 3,154.86

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Solution

The fourth proportional to 7,104.53, 10,656.79 and 3,154.86 is: 4,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.53 : 10,656.79 = 3,154.86 : x
  2. Step 2: Convert to fraction form
    7,104.53/10,656.79 = 3,154.86/x
  3. Step 3: Cross multiply
    7,104.53x = 10,656.79 × 3,154.86
  4. Step 4: Simplify right side
    7,104.53x = 33,620,627.22
  5. Step 5: Solve for x
    x = 33,620,627.22/7,104.53
  6. Step 6: Final answer
    x = 4,732.28

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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.