Home / 2,180.25-3,009.44-1,394.30

Finding the Fourth Proportional to 2,180.25, 3,009.44 and 1,394.30

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Solution

The fourth proportional to 2,180.25, 3,009.44 and 1,394.30 is: 1,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.25 : 3,009.44 = 1,394.30 : x
  2. Step 2: Convert to fraction form
    2,180.25/3,009.44 = 1,394.30/x
  3. Step 3: Cross multiply
    2,180.25x = 3,009.44 × 1,394.30
  4. Step 4: Simplify right side
    2,180.25x = 4,196,073.20
  5. Step 5: Solve for x
    x = 4,196,073.20/2,180.25
  6. Step 6: Final answer
    x = 1,924.58

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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.