Home / 2,396.19-3,289.08-2,128.35

Finding the Fourth Proportional to 2,396.19, 3,289.08 and 2,128.35

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Solution

The fourth proportional to 2,396.19, 3,289.08 and 2,128.35 is: 2,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,396.19 : 3,289.08 = 2,128.35 : x
  2. Step 2: Convert to fraction form
    2,396.19/3,289.08 = 2,128.35/x
  3. Step 3: Cross multiply
    2,396.19x = 3,289.08 × 2,128.35
  4. Step 4: Simplify right side
    2,396.19x = 7,000,321.64
  5. Step 5: Solve for x
    x = 7,000,321.64/2,396.19
  6. Step 6: Final answer
    x = 2,921.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.