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Finding the Fourth Proportional to 6,491.88, 8,963.07 and 4,997.16

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Solution

The fourth proportional to 6,491.88, 8,963.07 and 4,997.16 is: 6,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,491.88 : 8,963.07 = 4,997.16 : x
  2. Step 2: Convert to fraction form
    6,491.88/8,963.07 = 4,997.16/x
  3. Step 3: Cross multiply
    6,491.88x = 8,963.07 × 4,997.16
  4. Step 4: Simplify right side
    6,491.88x = 44,789,894.88
  5. Step 5: Solve for x
    x = 44,789,894.88/6,491.88
  6. Step 6: Final answer
    x = 6,899.37

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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.