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Finding the Fourth Proportional to 5,697.68, 7,863 and 3,339.68

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Solution

The fourth proportional to 5,697.68, 7,863 and 3,339.68 is: 4,608.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,697.68 : 7,863 = 3,339.68 : x
  2. Step 2: Convert to fraction form
    5,697.68/7,863 = 3,339.68/x
  3. Step 3: Cross multiply
    5,697.68x = 7,863 × 3,339.68
  4. Step 4: Simplify right side
    5,697.68x = 26,259,903.84
  5. Step 5: Solve for x
    x = 26,259,903.84/5,697.68
  6. Step 6: Final answer
    x = 4,608.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.