Home / 2,917.11-4,018.77-2,031.33

Finding the Fourth Proportional to 2,917.11, 4,018.77 and 2,031.33

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Solution

The fourth proportional to 2,917.11, 4,018.77 and 2,031.33 is: 2,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.11 : 4,018.77 = 2,031.33 : x
  2. Step 2: Convert to fraction form
    2,917.11/4,018.77 = 2,031.33/x
  3. Step 3: Cross multiply
    2,917.11x = 4,018.77 × 2,031.33
  4. Step 4: Simplify right side
    2,917.11x = 8,163,448.06
  5. Step 5: Solve for x
    x = 8,163,448.06/2,917.11
  6. Step 6: Final answer
    x = 2,798.47

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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.