Home / 5,676.86-7,833.37-3,439.78

Finding the Fourth Proportional to 5,676.86, 7,833.37 and 3,439.78

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Solution

The fourth proportional to 5,676.86, 7,833.37 and 3,439.78 is: 4,746.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.86 : 7,833.37 = 3,439.78 : x
  2. Step 2: Convert to fraction form
    5,676.86/7,833.37 = 3,439.78/x
  3. Step 3: Cross multiply
    5,676.86x = 7,833.37 × 3,439.78
  4. Step 4: Simplify right side
    5,676.86x = 26,945,069.46
  5. Step 5: Solve for x
    x = 26,945,069.46/5,676.86
  6. Step 6: Final answer
    x = 4,746.47

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1.5x scale

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.