Home / 3,081.50-4,624.14-1,621.70

Finding the Fourth Proportional to 3,081.50, 4,624.14 and 1,621.70

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Solution

The fourth proportional to 3,081.50, 4,624.14 and 1,621.70 is: 2,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.50 : 4,624.14 = 1,621.70 : x
  2. Step 2: Convert to fraction form
    3,081.50/4,624.14 = 1,621.70/x
  3. Step 3: Cross multiply
    3,081.50x = 4,624.14 × 1,621.70
  4. Step 4: Simplify right side
    3,081.50x = 7,498,967.84
  5. Step 5: Solve for x
    x = 7,498,967.84/3,081.50
  6. Step 6: Final answer
    x = 2,433.54

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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.