Home / 3,118.56-4,303.68-1,721.52

Finding the Fourth Proportional to 3,118.56, 4,303.68 and 1,721.52

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Solution

The fourth proportional to 3,118.56, 4,303.68 and 1,721.52 is: 2,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.56 : 4,303.68 = 1,721.52 : x
  2. Step 2: Convert to fraction form
    3,118.56/4,303.68 = 1,721.52/x
  3. Step 3: Cross multiply
    3,118.56x = 4,303.68 × 1,721.52
  4. Step 4: Simplify right side
    3,118.56x = 7,408,871.19
  5. Step 5: Solve for x
    x = 7,408,871.19/3,118.56
  6. Step 6: Final answer
    x = 2,375.73

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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.