Home / 1,785.80-2,463.99-1,122.41

Finding the Fourth Proportional to 1,785.80, 2,463.99 and 1,122.41

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Solution

The fourth proportional to 1,785.80, 2,463.99 and 1,122.41 is: 1,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.80 : 2,463.99 = 1,122.41 : x
  2. Step 2: Convert to fraction form
    1,785.80/2,463.99 = 1,122.41/x
  3. Step 3: Cross multiply
    1,785.80x = 2,463.99 × 1,122.41
  4. Step 4: Simplify right side
    1,785.80x = 2,765,594.70
  5. Step 5: Solve for x
    x = 2,765,594.70/1,785.80
  6. Step 6: Final answer
    x = 1,548.66

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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.