Home / 2,505.29-3,739.43-2,209.81

Finding the Fourth Proportional to 2,505.29, 3,739.43 and 2,209.81

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Solution

The fourth proportional to 2,505.29, 3,739.43 and 2,209.81 is: 3,298.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.29 : 3,739.43 = 2,209.81 : x
  2. Step 2: Convert to fraction form
    2,505.29/3,739.43 = 2,209.81/x
  3. Step 3: Cross multiply
    2,505.29x = 3,739.43 × 2,209.81
  4. Step 4: Simplify right side
    2,505.29x = 8,263,429.81
  5. Step 5: Solve for x
    x = 8,263,429.81/2,505.29
  6. Step 6: Final answer
    x = 3,298.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.