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Finding the Fourth Proportional to 4,999.71, 6,899.57 and 2,761.58

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Solution

The fourth proportional to 4,999.71, 6,899.57 and 2,761.58 is: 3,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.71 : 6,899.57 = 2,761.58 : x
  2. Step 2: Convert to fraction form
    4,999.71/6,899.57 = 2,761.58/x
  3. Step 3: Cross multiply
    4,999.71x = 6,899.57 × 2,761.58
  4. Step 4: Simplify right side
    4,999.71x = 19,053,666.21
  5. Step 5: Solve for x
    x = 19,053,666.21/4,999.71
  6. Step 6: Final answer
    x = 3,810.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.