Home / 3,119.56-4,305.06-1,722.52

Finding the Fourth Proportional to 3,119.56, 4,305.06 and 1,722.52

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Solution

The fourth proportional to 3,119.56, 4,305.06 and 1,722.52 is: 2,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.56 : 4,305.06 = 1,722.52 : x
  2. Step 2: Convert to fraction form
    3,119.56/4,305.06 = 1,722.52/x
  3. Step 3: Cross multiply
    3,119.56x = 4,305.06 × 1,722.52
  4. Step 4: Simplify right side
    3,119.56x = 7,415,551.95
  5. Step 5: Solve for x
    x = 7,415,551.95/3,119.56
  6. Step 6: Final answer
    x = 2,377.11

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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.