Home / 3,519.18-5,280.19-1,328.54

Finding the Fourth Proportional to 3,519.18, 5,280.19 and 1,328.54

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Solution

The fourth proportional to 3,519.18, 5,280.19 and 1,328.54 is: 1,993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.18 : 5,280.19 = 1,328.54 : x
  2. Step 2: Convert to fraction form
    3,519.18/5,280.19 = 1,328.54/x
  3. Step 3: Cross multiply
    3,519.18x = 5,280.19 × 1,328.54
  4. Step 4: Simplify right side
    3,519.18x = 7,014,913.90
  5. Step 5: Solve for x
    x = 7,014,913.90/3,519.18
  6. Step 6: Final answer
    x = 1,993.34

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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.