Home / 3,081.18-4,617.12-1,435.80

Finding the Fourth Proportional to 3,081.18, 4,617.12 and 1,435.80

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Solution

The fourth proportional to 3,081.18, 4,617.12 and 1,435.80 is: 2,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.18 : 4,617.12 = 1,435.80 : x
  2. Step 2: Convert to fraction form
    3,081.18/4,617.12 = 1,435.80/x
  3. Step 3: Cross multiply
    3,081.18x = 4,617.12 × 1,435.80
  4. Step 4: Simplify right side
    3,081.18x = 6,629,260.90
  5. Step 5: Solve for x
    x = 6,629,260.90/3,081.18
  6. Step 6: Final answer
    x = 2,151.53

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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.