Home / 2,189.44-3,029.40-1,910.32

Finding the Fourth Proportional to 2,189.44, 3,029.40 and 1,910.32

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Solution

The fourth proportional to 2,189.44, 3,029.40 and 1,910.32 is: 2,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.44 : 3,029.40 = 1,910.32 : x
  2. Step 2: Convert to fraction form
    2,189.44/3,029.40 = 1,910.32/x
  3. Step 3: Cross multiply
    2,189.44x = 3,029.40 × 1,910.32
  4. Step 4: Simplify right side
    2,189.44x = 5,787,123.41
  5. Step 5: Solve for x
    x = 5,787,123.41/2,189.44
  6. Step 6: Final answer
    x = 2,643.20

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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.