Home / 1,687.03-2,326.58-1,057.62

Finding the Fourth Proportional to 1,687.03, 2,326.58 and 1,057.62

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Solution

The fourth proportional to 1,687.03, 2,326.58 and 1,057.62 is: 1,458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.03 : 2,326.58 = 1,057.62 : x
  2. Step 2: Convert to fraction form
    1,687.03/2,326.58 = 1,057.62/x
  3. Step 3: Cross multiply
    1,687.03x = 2,326.58 × 1,057.62
  4. Step 4: Simplify right side
    1,687.03x = 2,460,637.54
  5. Step 5: Solve for x
    x = 2,460,637.54/1,687.03
  6. Step 6: Final answer
    x = 1,458.56

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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.