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Finding the Fourth Proportional to 7,508.12, 11,262.06 and 2,891

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Solution

The fourth proportional to 7,508.12, 11,262.06 and 2,891 is: 4,336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,508.12 : 11,262.06 = 2,891 : x
  2. Step 2: Convert to fraction form
    7,508.12/11,262.06 = 2,891/x
  3. Step 3: Cross multiply
    7,508.12x = 11,262.06 × 2,891
  4. Step 4: Simplify right side
    7,508.12x = 32,558,615.46
  5. Step 5: Solve for x
    x = 32,558,615.46/7,508.12
  6. Step 6: Final answer
    x = 4,336.45

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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.