Home / 1,802.06-2,687.28-1,785.64

Finding the Fourth Proportional to 1,802.06, 2,687.28 and 1,785.64

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Solution

The fourth proportional to 1,802.06, 2,687.28 and 1,785.64 is: 2,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.06 : 2,687.28 = 1,785.64 : x
  2. Step 2: Convert to fraction form
    1,802.06/2,687.28 = 1,785.64/x
  3. Step 3: Cross multiply
    1,802.06x = 2,687.28 × 1,785.64
  4. Step 4: Simplify right side
    1,802.06x = 4,798,514.66
  5. Step 5: Solve for x
    x = 4,798,514.66/1,802.06
  6. Step 6: Final answer
    x = 2,662.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.