Home / 2,059.70-2,842.44-1,128.20

Finding the Fourth Proportional to 2,059.70, 2,842.44 and 1,128.20

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Solution

The fourth proportional to 2,059.70, 2,842.44 and 1,128.20 is: 1,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059.70 : 2,842.44 = 1,128.20 : x
  2. Step 2: Convert to fraction form
    2,059.70/2,842.44 = 1,128.20/x
  3. Step 3: Cross multiply
    2,059.70x = 2,842.44 × 1,128.20
  4. Step 4: Simplify right side
    2,059.70x = 3,206,826.60
  5. Step 5: Solve for x
    x = 3,206,826.60/2,059.70
  6. Step 6: Final answer
    x = 1,556.94

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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.