Home / 7,257.42-10,886.20-2,871.79

Finding the Fourth Proportional to 7,257.42, 10,886.20 and 2,871.79

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Solution

The fourth proportional to 7,257.42, 10,886.20 and 2,871.79 is: 4,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.42 : 10,886.20 = 2,871.79 : x
  2. Step 2: Convert to fraction form
    7,257.42/10,886.20 = 2,871.79/x
  3. Step 3: Cross multiply
    7,257.42x = 10,886.20 × 2,871.79
  4. Step 4: Simplify right side
    7,257.42x = 31,262,845.90
  5. Step 5: Solve for x
    x = 31,262,845.90/7,257.42
  6. Step 6: Final answer
    x = 4,307.71

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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.