Home / 3,220.02-4,443.31-1,803.59

Finding the Fourth Proportional to 3,220.02, 4,443.31 and 1,803.59

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Solution

The fourth proportional to 3,220.02, 4,443.31 and 1,803.59 is: 2,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.02 : 4,443.31 = 1,803.59 : x
  2. Step 2: Convert to fraction form
    3,220.02/4,443.31 = 1,803.59/x
  3. Step 3: Cross multiply
    3,220.02x = 4,443.31 × 1,803.59
  4. Step 4: Simplify right side
    3,220.02x = 8,013,919.95
  5. Step 5: Solve for x
    x = 8,013,919.95/3,220.02
  6. Step 6: Final answer
    x = 2,488.78

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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.