Home / 3,917.10-5,405.22-2,345.16

Finding the Fourth Proportional to 3,917.10, 5,405.22 and 2,345.16

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Solution

The fourth proportional to 3,917.10, 5,405.22 and 2,345.16 is: 3,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.10 : 5,405.22 = 2,345.16 : x
  2. Step 2: Convert to fraction form
    3,917.10/5,405.22 = 2,345.16/x
  3. Step 3: Cross multiply
    3,917.10x = 5,405.22 × 2,345.16
  4. Step 4: Simplify right side
    3,917.10x = 12,676,105.74
  5. Step 5: Solve for x
    x = 12,676,105.74/3,917.10
  6. Step 6: Final answer
    x = 3,236.09

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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.