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Finding the Fourth Proportional to 7,898.86, 11,839.96 and 2,632.46

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Solution

The fourth proportional to 7,898.86, 11,839.96 and 2,632.46 is: 3,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.86 : 11,839.96 = 2,632.46 : x
  2. Step 2: Convert to fraction form
    7,898.86/11,839.96 = 2,632.46/x
  3. Step 3: Cross multiply
    7,898.86x = 11,839.96 × 2,632.46
  4. Step 4: Simplify right side
    7,898.86x = 31,168,221.10
  5. Step 5: Solve for x
    x = 31,168,221.10/7,898.86
  6. Step 6: Final answer
    x = 3,945.91

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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.