Home / 3,518.57-5,280.45-1,669.69

Finding the Fourth Proportional to 3,518.57, 5,280.45 and 1,669.69

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Solution

The fourth proportional to 3,518.57, 5,280.45 and 1,669.69 is: 2,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.57 : 5,280.45 = 1,669.69 : x
  2. Step 2: Convert to fraction form
    3,518.57/5,280.45 = 1,669.69/x
  3. Step 3: Cross multiply
    3,518.57x = 5,280.45 × 1,669.69
  4. Step 4: Simplify right side
    3,518.57x = 8,816,706.21
  5. Step 5: Solve for x
    x = 8,816,706.21/3,518.57
  6. Step 6: Final answer
    x = 2,505.76

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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.