Home / 1,802.46-2,487.39-1,005.79

Finding the Fourth Proportional to 1,802.46, 2,487.39 and 1,005.79

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Solution

The fourth proportional to 1,802.46, 2,487.39 and 1,005.79 is: 1,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.46 : 2,487.39 = 1,005.79 : x
  2. Step 2: Convert to fraction form
    1,802.46/2,487.39 = 1,005.79/x
  3. Step 3: Cross multiply
    1,802.46x = 2,487.39 × 1,005.79
  4. Step 4: Simplify right side
    1,802.46x = 2,501,791.99
  5. Step 5: Solve for x
    x = 2,501,791.99/1,802.46
  6. Step 6: Final answer
    x = 1,387.99

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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.