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Finding the Fourth Proportional to 4,998.87, 6,898.38 and 2,760.72

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Solution

The fourth proportional to 4,998.87, 6,898.38 and 2,760.72 is: 3,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.87 : 6,898.38 = 2,760.72 : x
  2. Step 2: Convert to fraction form
    4,998.87/6,898.38 = 2,760.72/x
  3. Step 3: Cross multiply
    4,998.87x = 6,898.38 × 2,760.72
  4. Step 4: Simplify right side
    4,998.87x = 19,044,495.63
  5. Step 5: Solve for x
    x = 19,044,495.63/4,998.87
  6. Step 6: Final answer
    x = 3,809.76

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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.