Home / 2,027.77-2,798.21-1,131.47

Finding the Fourth Proportional to 2,027.77, 2,798.21 and 1,131.47

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Solution

The fourth proportional to 2,027.77, 2,798.21 and 1,131.47 is: 1,561.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.77 : 2,798.21 = 1,131.47 : x
  2. Step 2: Convert to fraction form
    2,027.77/2,798.21 = 1,131.47/x
  3. Step 3: Cross multiply
    2,027.77x = 2,798.21 × 1,131.47
  4. Step 4: Simplify right side
    2,027.77x = 3,166,090.00
  5. Step 5: Solve for x
    x = 3,166,090.00/2,027.77
  6. Step 6: Final answer
    x = 1,561.37

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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.