Home / 1,481.87-2,220.58-1,172.45

Finding the Fourth Proportional to 1,481.87, 2,220.58 and 1,172.45

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Solution

The fourth proportional to 1,481.87, 2,220.58 and 1,172.45 is: 1,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.87 : 2,220.58 = 1,172.45 : x
  2. Step 2: Convert to fraction form
    1,481.87/2,220.58 = 1,172.45/x
  3. Step 3: Cross multiply
    1,481.87x = 2,220.58 × 1,172.45
  4. Step 4: Simplify right side
    1,481.87x = 2,603,519.02
  5. Step 5: Solve for x
    x = 2,603,519.02/1,481.87
  6. Step 6: Final answer
    x = 1,756.91

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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.