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Finding the Fourth Proportional to 6,240.78, 8,612.73 and 3,589.02

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Solution

The fourth proportional to 6,240.78, 8,612.73 and 3,589.02 is: 4,953.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.78 : 8,612.73 = 3,589.02 : x
  2. Step 2: Convert to fraction form
    6,240.78/8,612.73 = 3,589.02/x
  3. Step 3: Cross multiply
    6,240.78x = 8,612.73 × 3,589.02
  4. Step 4: Simplify right side
    6,240.78x = 30,911,260.22
  5. Step 5: Solve for x
    x = 30,911,260.22/6,240.78
  6. Step 6: Final answer
    x = 4,953.11

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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.