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Finding the Fourth Proportional to 7,131.44, 10,699.44 and 3,432.68

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Solution

The fourth proportional to 7,131.44, 10,699.44 and 3,432.68 is: 5,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.44 : 10,699.44 = 3,432.68 : x
  2. Step 2: Convert to fraction form
    7,131.44/10,699.44 = 3,432.68/x
  3. Step 3: Cross multiply
    7,131.44x = 10,699.44 × 3,432.68
  4. Step 4: Simplify right side
    7,131.44x = 36,727,746.76
  5. Step 5: Solve for x
    x = 36,727,746.76/7,131.44
  6. Step 6: Final answer
    x = 5,150.11

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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.