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Finding the Fourth Proportional to 2,095.73, 3,143.62 and 862.86

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Solution

The fourth proportional to 2,095.73, 3,143.62 and 862.86 is: 1,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.73 : 3,143.62 = 862.86 : x
  2. Step 2: Convert to fraction form
    2,095.73/3,143.62 = 862.86/x
  3. Step 3: Cross multiply
    2,095.73x = 3,143.62 × 862.86
  4. Step 4: Simplify right side
    2,095.73x = 2,712,503.95
  5. Step 5: Solve for x
    x = 2,712,503.95/2,095.73
  6. Step 6: Final answer
    x = 1,294.30

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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.