Home / 3,917.30-5,405.48-2,424.66

Finding the Fourth Proportional to 3,917.30, 5,405.48 and 2,424.66

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Solution

The fourth proportional to 3,917.30, 5,405.48 and 2,424.66 is: 3,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.30 : 5,405.48 = 2,424.66 : x
  2. Step 2: Convert to fraction form
    3,917.30/5,405.48 = 2,424.66/x
  3. Step 3: Cross multiply
    3,917.30x = 5,405.48 × 2,424.66
  4. Step 4: Simplify right side
    3,917.30x = 13,106,439.01
  5. Step 5: Solve for x
    x = 13,106,439.01/3,917.30
  6. Step 6: Final answer
    x = 3,345.79

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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.