Home / 4,871.79-6,722.67-2,718.21

Finding the Fourth Proportional to 4,871.79, 6,722.67 and 2,718.21

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Solution

The fourth proportional to 4,871.79, 6,722.67 and 2,718.21 is: 3,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.79 : 6,722.67 = 2,718.21 : x
  2. Step 2: Convert to fraction form
    4,871.79/6,722.67 = 2,718.21/x
  3. Step 3: Cross multiply
    4,871.79x = 6,722.67 × 2,718.21
  4. Step 4: Simplify right side
    4,871.79x = 18,273,581.62
  5. Step 5: Solve for x
    x = 18,273,581.62/4,871.79
  6. Step 6: Final answer
    x = 3,750.90

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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.