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Finding the Fourth Proportional to 4,899.31, 6,761.07 and 2,661.20

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Solution

The fourth proportional to 4,899.31, 6,761.07 and 2,661.20 is: 3,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.31 : 6,761.07 = 2,661.20 : x
  2. Step 2: Convert to fraction form
    4,899.31/6,761.07 = 2,661.20/x
  3. Step 3: Cross multiply
    4,899.31x = 6,761.07 × 2,661.20
  4. Step 4: Simplify right side
    4,899.31x = 17,992,559.48
  5. Step 5: Solve for x
    x = 17,992,559.48/4,899.31
  6. Step 6: Final answer
    x = 3,672.47

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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.