Home / 2,854.23-4,280.80-1,211.93

Finding the Fourth Proportional to 2,854.23, 4,280.80 and 1,211.93

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Solution

The fourth proportional to 2,854.23, 4,280.80 and 1,211.93 is: 1,817.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.23 : 4,280.80 = 1,211.93 : x
  2. Step 2: Convert to fraction form
    2,854.23/4,280.80 = 1,211.93/x
  3. Step 3: Cross multiply
    2,854.23x = 4,280.80 × 1,211.93
  4. Step 4: Simplify right side
    2,854.23x = 5,188,029.94
  5. Step 5: Solve for x
    x = 5,188,029.94/2,854.23
  6. Step 6: Final answer
    x = 1,817.66

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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.