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Finding the Fourth Proportional to 2,806.74, 3,874.95 and 2,495.34

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Solution

The fourth proportional to 2,806.74, 3,874.95 and 2,495.34 is: 3,445.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.74 : 3,874.95 = 2,495.34 : x
  2. Step 2: Convert to fraction form
    2,806.74/3,874.95 = 2,495.34/x
  3. Step 3: Cross multiply
    2,806.74x = 3,874.95 × 2,495.34
  4. Step 4: Simplify right side
    2,806.74x = 9,669,317.73
  5. Step 5: Solve for x
    x = 9,669,317.73/2,806.74
  6. Step 6: Final answer
    x = 3,445.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.