Home / 2,802.78-3,866.70-1,859.04

Finding the Fourth Proportional to 2,802.78, 3,866.70 and 1,859.04

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Solution

The fourth proportional to 2,802.78, 3,866.70 and 1,859.04 is: 2,564.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.78 : 3,866.70 = 1,859.04 : x
  2. Step 2: Convert to fraction form
    2,802.78/3,866.70 = 1,859.04/x
  3. Step 3: Cross multiply
    2,802.78x = 3,866.70 × 1,859.04
  4. Step 4: Simplify right side
    2,802.78x = 7,188,349.97
  5. Step 5: Solve for x
    x = 7,188,349.97/2,802.78
  6. Step 6: Final answer
    x = 2,564.72

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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.