Home / 3,480.54-5,221.02-1,259.86

Finding the Fourth Proportional to 3,480.54, 5,221.02 and 1,259.86

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Solution

The fourth proportional to 3,480.54, 5,221.02 and 1,259.86 is: 1,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.54 : 5,221.02 = 1,259.86 : x
  2. Step 2: Convert to fraction form
    3,480.54/5,221.02 = 1,259.86/x
  3. Step 3: Cross multiply
    3,480.54x = 5,221.02 × 1,259.86
  4. Step 4: Simplify right side
    3,480.54x = 6,577,754.26
  5. Step 5: Solve for x
    x = 6,577,754.26/3,480.54
  6. Step 6: Final answer
    x = 1,889.87

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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.