Home / 1,785.09-2,464.79-1,391.43

Finding the Fourth Proportional to 1,785.09, 2,464.79 and 1,391.43

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Solution

The fourth proportional to 1,785.09, 2,464.79 and 1,391.43 is: 1,921.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.09 : 2,464.79 = 1,391.43 : x
  2. Step 2: Convert to fraction form
    1,785.09/2,464.79 = 1,391.43/x
  3. Step 3: Cross multiply
    1,785.09x = 2,464.79 × 1,391.43
  4. Step 4: Simplify right side
    1,785.09x = 3,429,586.23
  5. Step 5: Solve for x
    x = 3,429,586.23/1,785.09
  6. Step 6: Final answer
    x = 1,921.24

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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.