Home / 2,917.05-4,029.37-2,162.36

Finding the Fourth Proportional to 2,917.05, 4,029.37 and 2,162.36

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Solution

The fourth proportional to 2,917.05, 4,029.37 and 2,162.36 is: 2,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.05 : 4,029.37 = 2,162.36 : x
  2. Step 2: Convert to fraction form
    2,917.05/4,029.37 = 2,162.36/x
  3. Step 3: Cross multiply
    2,917.05x = 4,029.37 × 2,162.36
  4. Step 4: Simplify right side
    2,917.05x = 8,712,948.51
  5. Step 5: Solve for x
    x = 8,712,948.51/2,917.05
  6. Step 6: Final answer
    x = 2,986.90

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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.