Home / 2,493.75-3,441.62-1,389.75

Finding the Fourth Proportional to 2,493.75, 3,441.62 and 1,389.75

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Solution

The fourth proportional to 2,493.75, 3,441.62 and 1,389.75 is: 1,917.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.75 : 3,441.62 = 1,389.75 : x
  2. Step 2: Convert to fraction form
    2,493.75/3,441.62 = 1,389.75/x
  3. Step 3: Cross multiply
    2,493.75x = 3,441.62 × 1,389.75
  4. Step 4: Simplify right side
    2,493.75x = 4,782,984.45
  5. Step 5: Solve for x
    x = 4,782,984.45/2,493.75
  6. Step 6: Final answer
    x = 1,917.99

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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.