Home / 2,871.44-4,307.20-1,227.16

Finding the Fourth Proportional to 2,871.44, 4,307.20 and 1,227.16

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Solution

The fourth proportional to 2,871.44, 4,307.20 and 1,227.16 is: 1,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.44 : 4,307.20 = 1,227.16 : x
  2. Step 2: Convert to fraction form
    2,871.44/4,307.20 = 1,227.16/x
  3. Step 3: Cross multiply
    2,871.44x = 4,307.20 × 1,227.16
  4. Step 4: Simplify right side
    2,871.44x = 5,285,623.55
  5. Step 5: Solve for x
    x = 5,285,623.55/2,871.44
  6. Step 6: Final answer
    x = 1,840.76

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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.