Home / 3,081.51-4,619.05-1,436.69

Finding the Fourth Proportional to 3,081.51, 4,619.05 and 1,436.69

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Solution

The fourth proportional to 3,081.51, 4,619.05 and 1,436.69 is: 2,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.51 : 4,619.05 = 1,436.69 : x
  2. Step 2: Convert to fraction form
    3,081.51/4,619.05 = 1,436.69/x
  3. Step 3: Cross multiply
    3,081.51x = 4,619.05 × 1,436.69
  4. Step 4: Simplify right side
    3,081.51x = 6,636,150.90
  5. Step 5: Solve for x
    x = 6,636,150.90/3,081.51
  6. Step 6: Final answer
    x = 2,153.54

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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.