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Finding the Fourth Proportional to 7,871.86, 11,798.93 and 3,433.26

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Solution

The fourth proportional to 7,871.86, 11,798.93 and 3,433.26 is: 5,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.86 : 11,798.93 = 3,433.26 : x
  2. Step 2: Convert to fraction form
    7,871.86/11,798.93 = 3,433.26/x
  3. Step 3: Cross multiply
    7,871.86x = 11,798.93 × 3,433.26
  4. Step 4: Simplify right side
    7,871.86x = 40,508,794.41
  5. Step 5: Solve for x
    x = 40,508,794.41/7,871.86
  6. Step 6: Final answer
    x = 5,146.03

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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.