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Finding the Fourth Proportional to 4,868.50, 6,718.53 and 2,660.50

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Solution

The fourth proportional to 4,868.50, 6,718.53 and 2,660.50 is: 3,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.50 : 6,718.53 = 2,660.50 : x
  2. Step 2: Convert to fraction form
    4,868.50/6,718.53 = 2,660.50/x
  3. Step 3: Cross multiply
    4,868.50x = 6,718.53 × 2,660.50
  4. Step 4: Simplify right side
    4,868.50x = 17,874,649.07
  5. Step 5: Solve for x
    x = 17,874,649.07/4,868.50
  6. Step 6: Final answer
    x = 3,671.49

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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.