Home / 4,685.76-7,037.28-3,147.84

Finding the Fourth Proportional to 4,685.76, 7,037.28 and 3,147.84

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Solution

The fourth proportional to 4,685.76, 7,037.28 and 3,147.84 is: 4,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.76 : 7,037.28 = 3,147.84 : x
  2. Step 2: Convert to fraction form
    4,685.76/7,037.28 = 3,147.84/x
  3. Step 3: Cross multiply
    4,685.76x = 7,037.28 × 3,147.84
  4. Step 4: Simplify right side
    4,685.76x = 22,152,231.48
  5. Step 5: Solve for x
    x = 22,152,231.48/4,685.76
  6. Step 6: Final answer
    x = 4,727.56

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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.