Home / 2,976.42-4,107.60-1,857.36

Finding the Fourth Proportional to 2,976.42, 4,107.60 and 1,857.36

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Solution

The fourth proportional to 2,976.42, 4,107.60 and 1,857.36 is: 2,563.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.42 : 4,107.60 = 1,857.36 : x
  2. Step 2: Convert to fraction form
    2,976.42/4,107.60 = 1,857.36/x
  3. Step 3: Cross multiply
    2,976.42x = 4,107.60 × 1,857.36
  4. Step 4: Simplify right side
    2,976.42x = 7,629,291.94
  5. Step 5: Solve for x
    x = 7,629,291.94/2,976.42
  6. Step 6: Final answer
    x = 2,563.24

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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.