Home / 5,390.54-8,079.81-2,269.62

Finding the Fourth Proportional to 5,390.54, 8,079.81 and 2,269.62

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Solution

The fourth proportional to 5,390.54, 8,079.81 and 2,269.62 is: 3,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.54 : 8,079.81 = 2,269.62 : x
  2. Step 2: Convert to fraction form
    5,390.54/8,079.81 = 2,269.62/x
  3. Step 3: Cross multiply
    5,390.54x = 8,079.81 × 2,269.62
  4. Step 4: Simplify right side
    5,390.54x = 18,338,098.37
  5. Step 5: Solve for x
    x = 18,338,098.37/5,390.54
  6. Step 6: Final answer
    x = 3,401.90

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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.