Home / 2,012.43-2,777.10-1,128.33

Finding the Fourth Proportional to 2,012.43, 2,777.10 and 1,128.33

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Solution

The fourth proportional to 2,012.43, 2,777.10 and 1,128.33 is: 1,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.43 : 2,777.10 = 1,128.33 : x
  2. Step 2: Convert to fraction form
    2,012.43/2,777.10 = 1,128.33/x
  3. Step 3: Cross multiply
    2,012.43x = 2,777.10 × 1,128.33
  4. Step 4: Simplify right side
    2,012.43x = 3,133,485.24
  5. Step 5: Solve for x
    x = 3,133,485.24/2,012.43
  6. Step 6: Final answer
    x = 1,557.07

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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.