Home / 2,018.41-2,785.24-1,122.05

Finding the Fourth Proportional to 2,018.41, 2,785.24 and 1,122.05

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Solution

The fourth proportional to 2,018.41, 2,785.24 and 1,122.05 is: 1,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.41 : 2,785.24 = 1,122.05 : x
  2. Step 2: Convert to fraction form
    2,018.41/2,785.24 = 1,122.05/x
  3. Step 3: Cross multiply
    2,018.41x = 2,785.24 × 1,122.05
  4. Step 4: Simplify right side
    2,018.41x = 3,125,178.54
  5. Step 5: Solve for x
    x = 3,125,178.54/2,018.41
  6. Step 6: Final answer
    x = 1,548.34

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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.