Home / 3,280.23-4,919.87-1,406.87

Finding the Fourth Proportional to 3,280.23, 4,919.87 and 1,406.87

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Solution

The fourth proportional to 3,280.23, 4,919.87 and 1,406.87 is: 2,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.23 : 4,919.87 = 1,406.87 : x
  2. Step 2: Convert to fraction form
    3,280.23/4,919.87 = 1,406.87/x
  3. Step 3: Cross multiply
    3,280.23x = 4,919.87 × 1,406.87
  4. Step 4: Simplify right side
    3,280.23x = 6,921,614.87
  5. Step 5: Solve for x
    x = 6,921,614.87/3,280.23
  6. Step 6: Final answer
    x = 2,110.10

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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.