Home / 4,871.60-6,722.55-2,747.18

Finding the Fourth Proportional to 4,871.60, 6,722.55 and 2,747.18

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Solution

The fourth proportional to 4,871.60, 6,722.55 and 2,747.18 is: 3,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.60 : 6,722.55 = 2,747.18 : x
  2. Step 2: Convert to fraction form
    4,871.60/6,722.55 = 2,747.18/x
  3. Step 3: Cross multiply
    4,871.60x = 6,722.55 × 2,747.18
  4. Step 4: Simplify right side
    4,871.60x = 18,468,054.91
  5. Step 5: Solve for x
    x = 18,468,054.91/4,871.60
  6. Step 6: Final answer
    x = 3,790.96

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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.