Home / 2,389.05-3,580.83-926.97

Finding the Fourth Proportional to 2,389.05, 3,580.83 and 926.97

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Solution

The fourth proportional to 2,389.05, 3,580.83 and 926.97 is: 1,389.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.05 : 3,580.83 = 926.97 : x
  2. Step 2: Convert to fraction form
    2,389.05/3,580.83 = 926.97/x
  3. Step 3: Cross multiply
    2,389.05x = 3,580.83 × 926.97
  4. Step 4: Simplify right side
    2,389.05x = 3,319,321.99
  5. Step 5: Solve for x
    x = 3,319,321.99/2,389.05
  6. Step 6: Final answer
    x = 1,389.39

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1.5x scale

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.