Home / 2,028.24-2,798.99-1,188.96

Finding the Fourth Proportional to 2,028.24, 2,798.99 and 1,188.96

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Solution

The fourth proportional to 2,028.24, 2,798.99 and 1,188.96 is: 1,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.24 : 2,798.99 = 1,188.96 : x
  2. Step 2: Convert to fraction form
    2,028.24/2,798.99 = 1,188.96/x
  3. Step 3: Cross multiply
    2,028.24x = 2,798.99 × 1,188.96
  4. Step 4: Simplify right side
    2,028.24x = 3,327,881.21
  5. Step 5: Solve for x
    x = 3,327,881.21/2,028.24
  6. Step 6: Final answer
    x = 1,640.77

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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.