Home / 4,991.40-6,885.90-3,498.75

Finding the Fourth Proportional to 4,991.40, 6,885.90 and 3,498.75

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Solution

The fourth proportional to 4,991.40, 6,885.90 and 3,498.75 is: 4,826.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.40 : 6,885.90 = 3,498.75 : x
  2. Step 2: Convert to fraction form
    4,991.40/6,885.90 = 3,498.75/x
  3. Step 3: Cross multiply
    4,991.40x = 6,885.90 × 3,498.75
  4. Step 4: Simplify right side
    4,991.40x = 24,092,042.63
  5. Step 5: Solve for x
    x = 24,092,042.63/4,991.40
  6. Step 6: Final answer
    x = 4,826.71

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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.