Home / 3,625.40-5,429.79-1,866.08

Finding the Fourth Proportional to 3,625.40, 5,429.79 and 1,866.08

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Solution

The fourth proportional to 3,625.40, 5,429.79 and 1,866.08 is: 2,794.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.40 : 5,429.79 = 1,866.08 : x
  2. Step 2: Convert to fraction form
    3,625.40/5,429.79 = 1,866.08/x
  3. Step 3: Cross multiply
    3,625.40x = 5,429.79 × 1,866.08
  4. Step 4: Simplify right side
    3,625.40x = 10,132,395.37
  5. Step 5: Solve for x
    x = 10,132,395.37/3,625.40
  6. Step 6: Final answer
    x = 2,794.84

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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.