Home / 4,986.91-6,881.98-2,748.87

Finding the Fourth Proportional to 4,986.91, 6,881.98 and 2,748.87

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Solution

The fourth proportional to 4,986.91, 6,881.98 and 2,748.87 is: 3,793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.91 : 6,881.98 = 2,748.87 : x
  2. Step 2: Convert to fraction form
    4,986.91/6,881.98 = 2,748.87/x
  3. Step 3: Cross multiply
    4,986.91x = 6,881.98 × 2,748.87
  4. Step 4: Simplify right side
    4,986.91x = 18,917,633.95
  5. Step 5: Solve for x
    x = 18,917,633.95/4,986.91
  6. Step 6: Final answer
    x = 3,793.46

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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.