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Finding the Fourth Proportional to 7,670.97, 11,508.89 and 2,740.50

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Solution

The fourth proportional to 7,670.97, 11,508.89 and 2,740.50 is: 4,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.97 : 11,508.89 = 2,740.50 : x
  2. Step 2: Convert to fraction form
    7,670.97/11,508.89 = 2,740.50/x
  3. Step 3: Cross multiply
    7,670.97x = 11,508.89 × 2,740.50
  4. Step 4: Simplify right side
    7,670.97x = 31,540,099.34
  5. Step 5: Solve for x
    x = 31,540,099.34/7,670.97
  6. Step 6: Final answer
    x = 4,111.62

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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.