Home / 2,854.86-3,940.68-1,676.28

Finding the Fourth Proportional to 2,854.86, 3,940.68 and 1,676.28

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Solution

The fourth proportional to 2,854.86, 3,940.68 and 1,676.28 is: 2,313.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.86 : 3,940.68 = 1,676.28 : x
  2. Step 2: Convert to fraction form
    2,854.86/3,940.68 = 1,676.28/x
  3. Step 3: Cross multiply
    2,854.86x = 3,940.68 × 1,676.28
  4. Step 4: Simplify right side
    2,854.86x = 6,605,683.07
  5. Step 5: Solve for x
    x = 6,605,683.07/2,854.86
  6. Step 6: Final answer
    x = 2,313.84

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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.