Home / 3,620.72-5,000.70-2,439.74

Finding the Fourth Proportional to 3,620.72, 5,000.70 and 2,439.74

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Solution

The fourth proportional to 3,620.72, 5,000.70 and 2,439.74 is: 3,369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.72 : 5,000.70 = 2,439.74 : x
  2. Step 2: Convert to fraction form
    3,620.72/5,000.70 = 2,439.74/x
  3. Step 3: Cross multiply
    3,620.72x = 5,000.70 × 2,439.74
  4. Step 4: Simplify right side
    3,620.72x = 12,200,382.81
  5. Step 5: Solve for x
    x = 12,200,382.81/3,620.72
  6. Step 6: Final answer
    x = 3,369.61

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1.5x scale

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.