Home / 2,939.36-4,409.04-1,400

Finding the Fourth Proportional to 2,939.36, 4,409.04 and 1,400

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Solution

The fourth proportional to 2,939.36, 4,409.04 and 1,400 is: 2,100

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.36 : 4,409.04 = 1,400 : x
  2. Step 2: Convert to fraction form
    2,939.36/4,409.04 = 1,400/x
  3. Step 3: Cross multiply
    2,939.36x = 4,409.04 × 1,400
  4. Step 4: Simplify right side
    2,939.36x = 6,172,656
  5. Step 5: Solve for x
    x = 6,172,656/2,939.36
  6. Step 6: Final answer
    x = 2,100

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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.