Home / 2,333.97-3,220.99-1,389.54

Finding the Fourth Proportional to 2,333.97, 3,220.99 and 1,389.54

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Solution

The fourth proportional to 2,333.97, 3,220.99 and 1,389.54 is: 1,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.97 : 3,220.99 = 1,389.54 : x
  2. Step 2: Convert to fraction form
    2,333.97/3,220.99 = 1,389.54/x
  3. Step 3: Cross multiply
    2,333.97x = 3,220.99 × 1,389.54
  4. Step 4: Simplify right side
    2,333.97x = 4,475,703.05
  5. Step 5: Solve for x
    x = 4,475,703.05/2,333.97
  6. Step 6: Final answer
    x = 1,917.64

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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.