Home / 3,481.02-4,803.81-1,909.20

Finding the Fourth Proportional to 3,481.02, 4,803.81 and 1,909.20

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Solution

The fourth proportional to 3,481.02, 4,803.81 and 1,909.20 is: 2,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.02 : 4,803.81 = 1,909.20 : x
  2. Step 2: Convert to fraction form
    3,481.02/4,803.81 = 1,909.20/x
  3. Step 3: Cross multiply
    3,481.02x = 4,803.81 × 1,909.20
  4. Step 4: Simplify right side
    3,481.02x = 9,171,434.05
  5. Step 5: Solve for x
    x = 9,171,434.05/3,481.02
  6. Step 6: Final answer
    x = 2,634.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.