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Finding the Fourth Proportional to 2,767.47, 3,821.79 and 2,366.79

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Solution

The fourth proportional to 2,767.47, 3,821.79 and 2,366.79 is: 3,268.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.47 : 3,821.79 = 2,366.79 : x
  2. Step 2: Convert to fraction form
    2,767.47/3,821.79 = 2,366.79/x
  3. Step 3: Cross multiply
    2,767.47x = 3,821.79 × 2,366.79
  4. Step 4: Simplify right side
    2,767.47x = 9,045,374.35
  5. Step 5: Solve for x
    x = 9,045,374.35/2,767.47
  6. Step 6: Final answer
    x = 3,268.46

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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.