Home / 2,386.80-3,578.99-926.37

Finding the Fourth Proportional to 2,386.80, 3,578.99 and 926.37

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Solution

The fourth proportional to 2,386.80, 3,578.99 and 926.37 is: 1,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.80 : 3,578.99 = 926.37 : x
  2. Step 2: Convert to fraction form
    2,386.80/3,578.99 = 926.37/x
  3. Step 3: Cross multiply
    2,386.80x = 3,578.99 × 926.37
  4. Step 4: Simplify right side
    2,386.80x = 3,315,464.33
  5. Step 5: Solve for x
    x = 3,315,464.33/2,386.80
  6. Step 6: Final answer
    x = 1,389.08

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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.