Home / 1,843.15-2,540.58-1,245.45

Finding the Fourth Proportional to 1,843.15, 2,540.58 and 1,245.45

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Solution

The fourth proportional to 1,843.15, 2,540.58 and 1,245.45 is: 1,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.15 : 2,540.58 = 1,245.45 : x
  2. Step 2: Convert to fraction form
    1,843.15/2,540.58 = 1,245.45/x
  3. Step 3: Cross multiply
    1,843.15x = 2,540.58 × 1,245.45
  4. Step 4: Simplify right side
    1,843.15x = 3,164,165.36
  5. Step 5: Solve for x
    x = 3,164,165.36/1,843.15
  6. Step 6: Final answer
    x = 1,716.72

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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.