Home / 1,485.03-2,227.26-389.37

Finding the Fourth Proportional to 1,485.03, 2,227.26 and 389.37

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Solution

The fourth proportional to 1,485.03, 2,227.26 and 389.37 is: 583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.03 : 2,227.26 = 389.37 : x
  2. Step 2: Convert to fraction form
    1,485.03/2,227.26 = 389.37/x
  3. Step 3: Cross multiply
    1,485.03x = 2,227.26 × 389.37
  4. Step 4: Simplify right side
    1,485.03x = 867,228.23
  5. Step 5: Solve for x
    x = 867,228.23/1,485.03
  6. Step 6: Final answer
    x = 583.98

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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.