Home / 2,418.78-3,629.54-2,074.32

Finding the Fourth Proportional to 2,418.78, 3,629.54 and 2,074.32

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Solution

The fourth proportional to 2,418.78, 3,629.54 and 2,074.32 is: 3,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.78 : 3,629.54 = 2,074.32 : x
  2. Step 2: Convert to fraction form
    2,418.78/3,629.54 = 2,074.32/x
  3. Step 3: Cross multiply
    2,418.78x = 3,629.54 × 2,074.32
  4. Step 4: Simplify right side
    2,418.78x = 7,528,817.04
  5. Step 5: Solve for x
    x = 7,528,817.04/2,418.78
  6. Step 6: Final answer
    x = 3,112.65

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1.5x scale

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.