Home / 1,970.55-2,719.26-1,185.03

Finding the Fourth Proportional to 1,970.55, 2,719.26 and 1,185.03

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Solution

The fourth proportional to 1,970.55, 2,719.26 and 1,185.03 is: 1,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.55 : 2,719.26 = 1,185.03 : x
  2. Step 2: Convert to fraction form
    1,970.55/2,719.26 = 1,185.03/x
  3. Step 3: Cross multiply
    1,970.55x = 2,719.26 × 1,185.03
  4. Step 4: Simplify right side
    1,970.55x = 3,222,404.68
  5. Step 5: Solve for x
    x = 3,222,404.68/1,970.55
  6. Step 6: Final answer
    x = 1,635.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.