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Finding the Fourth Proportional to 4,993.84, 6,891.87 and 2,898.28

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Solution

The fourth proportional to 4,993.84, 6,891.87 and 2,898.28 is: 3,999.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.84 : 6,891.87 = 2,898.28 : x
  2. Step 2: Convert to fraction form
    4,993.84/6,891.87 = 2,898.28/x
  3. Step 3: Cross multiply
    4,993.84x = 6,891.87 × 2,898.28
  4. Step 4: Simplify right side
    4,993.84x = 19,974,568.98
  5. Step 5: Solve for x
    x = 19,974,568.98/4,993.84
  6. Step 6: Final answer
    x = 3,999.84

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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.