Home / 2,629.76-3,944.62-1,090.76

Finding the Fourth Proportional to 2,629.76, 3,944.62 and 1,090.76

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Solution

The fourth proportional to 2,629.76, 3,944.62 and 1,090.76 is: 1,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.76 : 3,944.62 = 1,090.76 : x
  2. Step 2: Convert to fraction form
    2,629.76/3,944.62 = 1,090.76/x
  3. Step 3: Cross multiply
    2,629.76x = 3,944.62 × 1,090.76
  4. Step 4: Simplify right side
    2,629.76x = 4,302,633.71
  5. Step 5: Solve for x
    x = 4,302,633.71/2,629.76
  6. Step 6: Final answer
    x = 1,636.13

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1.5x scale

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.