Home / 2,918.67-4,028.52-1,800.51

Finding the Fourth Proportional to 2,918.67, 4,028.52 and 1,800.51

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Solution

The fourth proportional to 2,918.67, 4,028.52 and 1,800.51 is: 2,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.67 : 4,028.52 = 1,800.51 : x
  2. Step 2: Convert to fraction form
    2,918.67/4,028.52 = 1,800.51/x
  3. Step 3: Cross multiply
    2,918.67x = 4,028.52 × 1,800.51
  4. Step 4: Simplify right side
    2,918.67x = 7,253,390.55
  5. Step 5: Solve for x
    x = 7,253,390.55/2,918.67
  6. Step 6: Final answer
    x = 2,485.17

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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.