Home / 4,686.75-7,028.19-1,911.54

Finding the Fourth Proportional to 4,686.75, 7,028.19 and 1,911.54

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Solution

The fourth proportional to 4,686.75, 7,028.19 and 1,911.54 is: 2,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,686.75 : 7,028.19 = 1,911.54 : x
  2. Step 2: Convert to fraction form
    4,686.75/7,028.19 = 1,911.54/x
  3. Step 3: Cross multiply
    4,686.75x = 7,028.19 × 1,911.54
  4. Step 4: Simplify right side
    4,686.75x = 13,434,666.31
  5. Step 5: Solve for x
    x = 13,434,666.31/4,686.75
  6. Step 6: Final answer
    x = 2,866.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.