Home / 2,854.78-4,281.14-1,211.44

Finding the Fourth Proportional to 2,854.78, 4,281.14 and 1,211.44

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Solution

The fourth proportional to 2,854.78, 4,281.14 and 1,211.44 is: 1,816.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.78 : 4,281.14 = 1,211.44 : x
  2. Step 2: Convert to fraction form
    2,854.78/4,281.14 = 1,211.44/x
  3. Step 3: Cross multiply
    2,854.78x = 4,281.14 × 1,211.44
  4. Step 4: Simplify right side
    2,854.78x = 5,186,344.24
  5. Step 5: Solve for x
    x = 5,186,344.24/2,854.78
  6. Step 6: Final answer
    x = 1,816.72

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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.