Home / 3,917.52-5,406.35-2,345.31

Finding the Fourth Proportional to 3,917.52, 5,406.35 and 2,345.31

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Solution

The fourth proportional to 3,917.52, 5,406.35 and 2,345.31 is: 3,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.52 : 5,406.35 = 2,345.31 : x
  2. Step 2: Convert to fraction form
    3,917.52/5,406.35 = 2,345.31/x
  3. Step 3: Cross multiply
    3,917.52x = 5,406.35 × 2,345.31
  4. Step 4: Simplify right side
    3,917.52x = 12,679,554.99
  5. Step 5: Solve for x
    x = 12,679,554.99/3,917.52
  6. Step 6: Final answer
    x = 3,236.63

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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.