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Finding the Fourth Proportional to 6,139.89, 8,473.05 and 3,345.39

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Solution

The fourth proportional to 6,139.89, 8,473.05 and 3,345.39 is: 4,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.89 : 8,473.05 = 3,345.39 : x
  2. Step 2: Convert to fraction form
    6,139.89/8,473.05 = 3,345.39/x
  3. Step 3: Cross multiply
    6,139.89x = 8,473.05 × 3,345.39
  4. Step 4: Simplify right side
    6,139.89x = 28,345,656.74
  5. Step 5: Solve for x
    x = 28,345,656.74/6,139.89
  6. Step 6: Final answer
    x = 4,616.64

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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.