Home / 3,259.22-4,889.64-1,311.57

Finding the Fourth Proportional to 3,259.22, 4,889.64 and 1,311.57

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Solution

The fourth proportional to 3,259.22, 4,889.64 and 1,311.57 is: 1,967.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.22 : 4,889.64 = 1,311.57 : x
  2. Step 2: Convert to fraction form
    3,259.22/4,889.64 = 1,311.57/x
  3. Step 3: Cross multiply
    3,259.22x = 4,889.64 × 1,311.57
  4. Step 4: Simplify right side
    3,259.22x = 6,413,105.13
  5. Step 5: Solve for x
    x = 6,413,105.13/3,259.22
  6. Step 6: Final answer
    x = 1,967.68

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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.