Home / 4,489.47-6,715.46-3,155.18

Finding the Fourth Proportional to 4,489.47, 6,715.46 and 3,155.18

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Solution

The fourth proportional to 4,489.47, 6,715.46 and 3,155.18 is: 4,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,489.47 : 6,715.46 = 3,155.18 : x
  2. Step 2: Convert to fraction form
    4,489.47/6,715.46 = 3,155.18/x
  3. Step 3: Cross multiply
    4,489.47x = 6,715.46 × 3,155.18
  4. Step 4: Simplify right side
    4,489.47x = 21,188,435.73
  5. Step 5: Solve for x
    x = 21,188,435.73/4,489.47
  6. Step 6: Final answer
    x = 4,719.58

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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.