Home / 4,986.85-6,881.81-2,748.72

Finding the Fourth Proportional to 4,986.85, 6,881.81 and 2,748.72

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Solution

The fourth proportional to 4,986.85, 6,881.81 and 2,748.72 is: 3,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.85 : 6,881.81 = 2,748.72 : x
  2. Step 2: Convert to fraction form
    4,986.85/6,881.81 = 2,748.72/x
  3. Step 3: Cross multiply
    4,986.85x = 6,881.81 × 2,748.72
  4. Step 4: Simplify right side
    4,986.85x = 18,916,168.78
  5. Step 5: Solve for x
    x = 18,916,168.78/4,986.85
  6. Step 6: Final answer
    x = 3,793.21

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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.