Home / 2,811.24-3,881.16-2,499.84

Finding the Fourth Proportional to 2,811.24, 3,881.16 and 2,499.84

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Solution

The fourth proportional to 2,811.24, 3,881.16 and 2,499.84 is: 3,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.24 : 3,881.16 = 2,499.84 : x
  2. Step 2: Convert to fraction form
    2,811.24/3,881.16 = 2,499.84/x
  3. Step 3: Cross multiply
    2,811.24x = 3,881.16 × 2,499.84
  4. Step 4: Simplify right side
    2,811.24x = 9,702,279.01
  5. Step 5: Solve for x
    x = 9,702,279.01/2,811.24
  6. Step 6: Final answer
    x = 3,451.25

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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.