Home / 2,871.68-4,317.12-2,222.72

Finding the Fourth Proportional to 2,871.68, 4,317.12 and 2,222.72

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Solution

The fourth proportional to 2,871.68, 4,317.12 and 2,222.72 is: 3,341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.68 : 4,317.12 = 2,222.72 : x
  2. Step 2: Convert to fraction form
    2,871.68/4,317.12 = 2,222.72/x
  3. Step 3: Cross multiply
    2,871.68x = 4,317.12 × 2,222.72
  4. Step 4: Simplify right side
    2,871.68x = 9,595,748.97
  5. Step 5: Solve for x
    x = 9,595,748.97/2,871.68
  6. Step 6: Final answer
    x = 3,341.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.