Home / 1,541.38-2,125.29-1,245.73

Finding the Fourth Proportional to 1,541.38, 2,125.29 and 1,245.73

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Solution

The fourth proportional to 1,541.38, 2,125.29 and 1,245.73 is: 1,717.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.38 : 2,125.29 = 1,245.73 : x
  2. Step 2: Convert to fraction form
    1,541.38/2,125.29 = 1,245.73/x
  3. Step 3: Cross multiply
    1,541.38x = 2,125.29 × 1,245.73
  4. Step 4: Simplify right side
    1,541.38x = 2,647,537.51
  5. Step 5: Solve for x
    x = 2,647,537.51/1,541.38
  6. Step 6: Final answer
    x = 1,717.64

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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.