Home / 2,845.78-4,268.68-1,113.18

Finding the Fourth Proportional to 2,845.78, 4,268.68 and 1,113.18

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Solution

The fourth proportional to 2,845.78, 4,268.68 and 1,113.18 is: 1,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.78 : 4,268.68 = 1,113.18 : x
  2. Step 2: Convert to fraction form
    2,845.78/4,268.68 = 1,113.18/x
  3. Step 3: Cross multiply
    2,845.78x = 4,268.68 × 1,113.18
  4. Step 4: Simplify right side
    2,845.78x = 4,751,809.20
  5. Step 5: Solve for x
    x = 4,751,809.20/2,845.78
  6. Step 6: Final answer
    x = 1,669.77

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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.