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Finding the Fourth Proportional to 4,998.88, 7,497.87 and 1,878.76

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Solution

The fourth proportional to 4,998.88, 7,497.87 and 1,878.76 is: 2,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.88 : 7,497.87 = 1,878.76 : x
  2. Step 2: Convert to fraction form
    4,998.88/7,497.87 = 1,878.76/x
  3. Step 3: Cross multiply
    4,998.88x = 7,497.87 × 1,878.76
  4. Step 4: Simplify right side
    4,998.88x = 14,086,698.24
  5. Step 5: Solve for x
    x = 14,086,698.24/4,998.88
  6. Step 6: Final answer
    x = 2,817.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.