Home / 5,443.78-7,511.16-3,318.70

Finding the Fourth Proportional to 5,443.78, 7,511.16 and 3,318.70

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Solution

The fourth proportional to 5,443.78, 7,511.16 and 3,318.70 is: 4,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.78 : 7,511.16 = 3,318.70 : x
  2. Step 2: Convert to fraction form
    5,443.78/7,511.16 = 3,318.70/x
  3. Step 3: Cross multiply
    5,443.78x = 7,511.16 × 3,318.70
  4. Step 4: Simplify right side
    5,443.78x = 24,927,286.69
  5. Step 5: Solve for x
    x = 24,927,286.69/5,443.78
  6. Step 6: Final answer
    x = 4,579.04

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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.