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Finding the Fourth Proportional to 4,888.80, 6,746.63 and 2,763.90

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Solution

The fourth proportional to 4,888.80, 6,746.63 and 2,763.90 is: 3,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.80 : 6,746.63 = 2,763.90 : x
  2. Step 2: Convert to fraction form
    4,888.80/6,746.63 = 2,763.90/x
  3. Step 3: Cross multiply
    4,888.80x = 6,746.63 × 2,763.90
  4. Step 4: Simplify right side
    4,888.80x = 18,646,996.84
  5. Step 5: Solve for x
    x = 18,646,996.84/4,888.80
  6. Step 6: Final answer
    x = 3,814.23

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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.