Home / 2,120.18-3,182.09-1,025.26

Finding the Fourth Proportional to 2,120.18, 3,182.09 and 1,025.26

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Solution

The fourth proportional to 2,120.18, 3,182.09 and 1,025.26 is: 1,538.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.18 : 3,182.09 = 1,025.26 : x
  2. Step 2: Convert to fraction form
    2,120.18/3,182.09 = 1,025.26/x
  3. Step 3: Cross multiply
    2,120.18x = 3,182.09 × 1,025.26
  4. Step 4: Simplify right side
    2,120.18x = 3,262,456.51
  5. Step 5: Solve for x
    x = 3,262,456.51/2,120.18
  6. Step 6: Final answer
    x = 1,538.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.