Home / 4,755.55-7,131.30-1,981.30

Finding the Fourth Proportional to 4,755.55, 7,131.30 and 1,981.30

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Solution

The fourth proportional to 4,755.55, 7,131.30 and 1,981.30 is: 2,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.55 : 7,131.30 = 1,981.30 : x
  2. Step 2: Convert to fraction form
    4,755.55/7,131.30 = 1,981.30/x
  3. Step 3: Cross multiply
    4,755.55x = 7,131.30 × 1,981.30
  4. Step 4: Simplify right side
    4,755.55x = 14,129,244.69
  5. Step 5: Solve for x
    x = 14,129,244.69/4,755.55
  6. Step 6: Final answer
    x = 2,971.11

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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.