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Finding the Fourth Proportional to 2,766.86, 3,818.01 and 1,648.07

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Solution

The fourth proportional to 2,766.86, 3,818.01 and 1,648.07 is: 2,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.86 : 3,818.01 = 1,648.07 : x
  2. Step 2: Convert to fraction form
    2,766.86/3,818.01 = 1,648.07/x
  3. Step 3: Cross multiply
    2,766.86x = 3,818.01 × 1,648.07
  4. Step 4: Simplify right side
    2,766.86x = 6,292,338.20
  5. Step 5: Solve for x
    x = 6,292,338.20/2,766.86
  6. Step 6: Final answer
    x = 2,274.18

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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.