Home / 3,220.19-4,443.94-1,803.93

Finding the Fourth Proportional to 3,220.19, 4,443.94 and 1,803.93

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Solution

The fourth proportional to 3,220.19, 4,443.94 and 1,803.93 is: 2,489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.19 : 4,443.94 = 1,803.93 : x
  2. Step 2: Convert to fraction form
    3,220.19/4,443.94 = 1,803.93/x
  3. Step 3: Cross multiply
    3,220.19x = 4,443.94 × 1,803.93
  4. Step 4: Simplify right side
    3,220.19x = 8,016,534.46
  5. Step 5: Solve for x
    x = 8,016,534.46/3,220.19
  6. Step 6: Final answer
    x = 2,489.46

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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.