Home / 4,761.10-7,137.78-1,989.84

Finding the Fourth Proportional to 4,761.10, 7,137.78 and 1,989.84

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Solution

The fourth proportional to 4,761.10, 7,137.78 and 1,989.84 is: 2,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.10 : 7,137.78 = 1,989.84 : x
  2. Step 2: Convert to fraction form
    4,761.10/7,137.78 = 1,989.84/x
  3. Step 3: Cross multiply
    4,761.10x = 7,137.78 × 1,989.84
  4. Step 4: Simplify right side
    4,761.10x = 14,202,994.52
  5. Step 5: Solve for x
    x = 14,202,994.52/4,761.10
  6. Step 6: Final answer
    x = 2,983.13

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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.