Home / 1,865.06-2,795.69-1,172.21

Finding the Fourth Proportional to 1,865.06, 2,795.69 and 1,172.21

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Solution

The fourth proportional to 1,865.06, 2,795.69 and 1,172.21 is: 1,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.06 : 2,795.69 = 1,172.21 : x
  2. Step 2: Convert to fraction form
    1,865.06/2,795.69 = 1,172.21/x
  3. Step 3: Cross multiply
    1,865.06x = 2,795.69 × 1,172.21
  4. Step 4: Simplify right side
    1,865.06x = 3,277,129.91
  5. Step 5: Solve for x
    x = 3,277,129.91/1,865.06
  6. Step 6: Final answer
    x = 1,757.12

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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.