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Finding the Fourth Proportional to 4,891.89, 6,749.75 and 2,903.11

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Solution

The fourth proportional to 4,891.89, 6,749.75 and 2,903.11 is: 4,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.89 : 6,749.75 = 2,903.11 : x
  2. Step 2: Convert to fraction form
    4,891.89/6,749.75 = 2,903.11/x
  3. Step 3: Cross multiply
    4,891.89x = 6,749.75 × 2,903.11
  4. Step 4: Simplify right side
    4,891.89x = 19,595,257.11
  5. Step 5: Solve for x
    x = 19,595,257.11/4,891.89
  6. Step 6: Final answer
    x = 4,005.66

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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.