Home / 1,485.72-2,229.45-1,370.97

Finding the Fourth Proportional to 1,485.72, 2,229.45 and 1,370.97

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Solution

The fourth proportional to 1,485.72, 2,229.45 and 1,370.97 is: 2,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.72 : 2,229.45 = 1,370.97 : x
  2. Step 2: Convert to fraction form
    1,485.72/2,229.45 = 1,370.97/x
  3. Step 3: Cross multiply
    1,485.72x = 2,229.45 × 1,370.97
  4. Step 4: Simplify right side
    1,485.72x = 3,056,509.07
  5. Step 5: Solve for x
    x = 3,056,509.07/1,485.72
  6. Step 6: Final answer
    x = 2,057.26

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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.