Home / 4,911.84-7,372.32-1,990.37

Finding the Fourth Proportional to 4,911.84, 7,372.32 and 1,990.37

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Solution

The fourth proportional to 4,911.84, 7,372.32 and 1,990.37 is: 2,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.84 : 7,372.32 = 1,990.37 : x
  2. Step 2: Convert to fraction form
    4,911.84/7,372.32 = 1,990.37/x
  3. Step 3: Cross multiply
    4,911.84x = 7,372.32 × 1,990.37
  4. Step 4: Simplify right side
    4,911.84x = 14,673,655.53
  5. Step 5: Solve for x
    x = 14,673,655.53/4,911.84
  6. Step 6: Final answer
    x = 2,987.41

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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.