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Finding the Fourth Proportional to 4,881.80, 6,736.83 and 2,643.63

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Solution

The fourth proportional to 4,881.80, 6,736.83 and 2,643.63 is: 3,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.80 : 6,736.83 = 2,643.63 : x
  2. Step 2: Convert to fraction form
    4,881.80/6,736.83 = 2,643.63/x
  3. Step 3: Cross multiply
    4,881.80x = 6,736.83 × 2,643.63
  4. Step 4: Simplify right side
    4,881.80x = 17,809,685.89
  5. Step 5: Solve for x
    x = 17,809,685.89/4,881.80
  6. Step 6: Final answer
    x = 3,648.18

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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.