Home / 2,560.76-3,835.95-1,172.18

Finding the Fourth Proportional to 2,560.76, 3,835.95 and 1,172.18

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Solution

The fourth proportional to 2,560.76, 3,835.95 and 1,172.18 is: 1,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.76 : 3,835.95 = 1,172.18 : x
  2. Step 2: Convert to fraction form
    2,560.76/3,835.95 = 1,172.18/x
  3. Step 3: Cross multiply
    2,560.76x = 3,835.95 × 1,172.18
  4. Step 4: Simplify right side
    2,560.76x = 4,496,433.46
  5. Step 5: Solve for x
    x = 4,496,433.46/2,560.76
  6. Step 6: Final answer
    x = 1,755.90

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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.