Home / 2,657.09-3,985.59-1,195.21

Finding the Fourth Proportional to 2,657.09, 3,985.59 and 1,195.21

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Solution

The fourth proportional to 2,657.09, 3,985.59 and 1,195.21 is: 1,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.09 : 3,985.59 = 1,195.21 : x
  2. Step 2: Convert to fraction form
    2,657.09/3,985.59 = 1,195.21/x
  3. Step 3: Cross multiply
    2,657.09x = 3,985.59 × 1,195.21
  4. Step 4: Simplify right side
    2,657.09x = 4,763,617.02
  5. Step 5: Solve for x
    x = 4,763,617.02/2,657.09
  6. Step 6: Final answer
    x = 1,792.79

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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.