Home / 5,439.41-8,156.94-2,320.81

Finding the Fourth Proportional to 5,439.41, 8,156.94 and 2,320.81

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Solution

The fourth proportional to 5,439.41, 8,156.94 and 2,320.81 is: 3,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.41 : 8,156.94 = 2,320.81 : x
  2. Step 2: Convert to fraction form
    5,439.41/8,156.94 = 2,320.81/x
  3. Step 3: Cross multiply
    5,439.41x = 8,156.94 × 2,320.81
  4. Step 4: Simplify right side
    5,439.41x = 18,930,678.83
  5. Step 5: Solve for x
    x = 18,930,678.83/5,439.41
  6. Step 6: Final answer
    x = 3,480.28

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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.