Home / 2,811.64-4,210.90-2,499.04

Finding the Fourth Proportional to 2,811.64, 4,210.90 and 2,499.04

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Solution

The fourth proportional to 2,811.64, 4,210.90 and 2,499.04 is: 3,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.64 : 4,210.90 = 2,499.04 : x
  2. Step 2: Convert to fraction form
    2,811.64/4,210.90 = 2,499.04/x
  3. Step 3: Cross multiply
    2,811.64x = 4,210.90 × 2,499.04
  4. Step 4: Simplify right side
    2,811.64x = 10,523,207.54
  5. Step 5: Solve for x
    x = 10,523,207.54/2,811.64
  6. Step 6: Final answer
    x = 3,742.73

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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.