Home / 2,027.81-2,798.48-1,188.50

Finding the Fourth Proportional to 2,027.81, 2,798.48 and 1,188.50

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Solution

The fourth proportional to 2,027.81, 2,798.48 and 1,188.50 is: 1,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.81 : 2,798.48 = 1,188.50 : x
  2. Step 2: Convert to fraction form
    2,027.81/2,798.48 = 1,188.50/x
  3. Step 3: Cross multiply
    2,027.81x = 2,798.48 × 1,188.50
  4. Step 4: Simplify right side
    2,027.81x = 3,325,987.54
  5. Step 5: Solve for x
    x = 3,325,987.54/2,027.81
  6. Step 6: Final answer
    x = 1,640.19

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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.