Home / 2,388.97-3,296.55-1,394.20

Finding the Fourth Proportional to 2,388.97, 3,296.55 and 1,394.20

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Solution

The fourth proportional to 2,388.97, 3,296.55 and 1,394.20 is: 1,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.97 : 3,296.55 = 1,394.20 : x
  2. Step 2: Convert to fraction form
    2,388.97/3,296.55 = 1,394.20/x
  3. Step 3: Cross multiply
    2,388.97x = 3,296.55 × 1,394.20
  4. Step 4: Simplify right side
    2,388.97x = 4,596,050.01
  5. Step 5: Solve for x
    x = 4,596,050.01/2,388.97
  6. Step 6: Final answer
    x = 1,923.86

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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.