Home / 3,917.44-5,405.40-2,590.43

Finding the Fourth Proportional to 3,917.44, 5,405.40 and 2,590.43

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Solution

The fourth proportional to 3,917.44, 5,405.40 and 2,590.43 is: 3,574.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.44 : 5,405.40 = 2,590.43 : x
  2. Step 2: Convert to fraction form
    3,917.44/5,405.40 = 2,590.43/x
  3. Step 3: Cross multiply
    3,917.44x = 5,405.40 × 2,590.43
  4. Step 4: Simplify right side
    3,917.44x = 14,002,323.84
  5. Step 5: Solve for x
    x = 14,002,323.84/3,917.44
  6. Step 6: Final answer
    x = 3,574.36

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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.