Home / 1,873.26-2,581.67-1,242.68

Finding the Fourth Proportional to 1,873.26, 2,581.67 and 1,242.68

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Solution

The fourth proportional to 1,873.26, 2,581.67 and 1,242.68 is: 1,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.26 : 2,581.67 = 1,242.68 : x
  2. Step 2: Convert to fraction form
    1,873.26/2,581.67 = 1,242.68/x
  3. Step 3: Cross multiply
    1,873.26x = 2,581.67 × 1,242.68
  4. Step 4: Simplify right side
    1,873.26x = 3,208,179.87
  5. Step 5: Solve for x
    x = 3,208,179.87/1,873.26
  6. Step 6: Final answer
    x = 1,712.62

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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.