Home / 3,518.68-5,280.24-1,669.81

Finding the Fourth Proportional to 3,518.68, 5,280.24 and 1,669.81

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Solution

The fourth proportional to 3,518.68, 5,280.24 and 1,669.81 is: 2,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.68 : 5,280.24 = 1,669.81 : x
  2. Step 2: Convert to fraction form
    3,518.68/5,280.24 = 1,669.81/x
  3. Step 3: Cross multiply
    3,518.68x = 5,280.24 × 1,669.81
  4. Step 4: Simplify right side
    3,518.68x = 8,816,987.41
  5. Step 5: Solve for x
    x = 8,816,987.41/3,518.68
  6. Step 6: Final answer
    x = 2,505.77

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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.