Home / 3,081.36-4,621.92-1,132.68

Finding the Fourth Proportional to 3,081.36, 4,621.92 and 1,132.68

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Solution

The fourth proportional to 3,081.36, 4,621.92 and 1,132.68 is: 1,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.36 : 4,621.92 = 1,132.68 : x
  2. Step 2: Convert to fraction form
    3,081.36/4,621.92 = 1,132.68/x
  3. Step 3: Cross multiply
    3,081.36x = 4,621.92 × 1,132.68
  4. Step 4: Simplify right side
    3,081.36x = 5,235,156.35
  5. Step 5: Solve for x
    x = 5,235,156.35/3,081.36
  6. Step 6: Final answer
    x = 1,698.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.