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Finding the Fourth Proportional to 6,278.88, 8,664 and 3,590

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Solution

The fourth proportional to 6,278.88, 8,664 and 3,590 is: 4,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.88 : 8,664 = 3,590 : x
  2. Step 2: Convert to fraction form
    6,278.88/8,664 = 3,590/x
  3. Step 3: Cross multiply
    6,278.88x = 8,664 × 3,590
  4. Step 4: Simplify right side
    6,278.88x = 31,103,760
  5. Step 5: Solve for x
    x = 31,103,760/6,278.88
  6. Step 6: Final answer
    x = 4,953.71

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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.