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Finding the Fourth Proportional to 4,876.44, 6,730.16 and 2,888.68

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Solution

The fourth proportional to 4,876.44, 6,730.16 and 2,888.68 is: 3,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.44 : 6,730.16 = 2,888.68 : x
  2. Step 2: Convert to fraction form
    4,876.44/6,730.16 = 2,888.68/x
  3. Step 3: Cross multiply
    4,876.44x = 6,730.16 × 2,888.68
  4. Step 4: Simplify right side
    4,876.44x = 19,441,278.59
  5. Step 5: Solve for x
    x = 19,441,278.59/4,876.44
  6. Step 6: Final answer
    x = 3,986.78

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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.