Home / 2,125.78-2,933.57-1,181.54

Finding the Fourth Proportional to 2,125.78, 2,933.57 and 1,181.54

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Solution

The fourth proportional to 2,125.78, 2,933.57 and 1,181.54 is: 1,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.78 : 2,933.57 = 1,181.54 : x
  2. Step 2: Convert to fraction form
    2,125.78/2,933.57 = 1,181.54/x
  3. Step 3: Cross multiply
    2,125.78x = 2,933.57 × 1,181.54
  4. Step 4: Simplify right side
    2,125.78x = 3,466,137.29
  5. Step 5: Solve for x
    x = 3,466,137.29/2,125.78
  6. Step 6: Final answer
    x = 1,630.53

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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.