Home / 2,129.44-2,938.73-1,185.24

Finding the Fourth Proportional to 2,129.44, 2,938.73 and 1,185.24

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Solution

The fourth proportional to 2,129.44, 2,938.73 and 1,185.24 is: 1,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.44 : 2,938.73 = 1,185.24 : x
  2. Step 2: Convert to fraction form
    2,129.44/2,938.73 = 1,185.24/x
  3. Step 3: Cross multiply
    2,129.44x = 2,938.73 × 1,185.24
  4. Step 4: Simplify right side
    2,129.44x = 3,483,100.35
  5. Step 5: Solve for x
    x = 3,483,100.35/2,129.44
  6. Step 6: Final answer
    x = 1,635.69

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1.5x scale

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.