Home / 4,986.80-6,881.84-2,748.77

Finding the Fourth Proportional to 4,986.80, 6,881.84 and 2,748.77

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Solution

The fourth proportional to 4,986.80, 6,881.84 and 2,748.77 is: 3,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.80 : 6,881.84 = 2,748.77 : x
  2. Step 2: Convert to fraction form
    4,986.80/6,881.84 = 2,748.77/x
  3. Step 3: Cross multiply
    4,986.80x = 6,881.84 × 2,748.77
  4. Step 4: Simplify right side
    4,986.80x = 18,916,556.21
  5. Step 5: Solve for x
    x = 18,916,556.21/4,986.80
  6. Step 6: Final answer
    x = 3,793.32

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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.