Home / 1,425.03-2,134.70-936.60

Finding the Fourth Proportional to 1,425.03, 2,134.70 and 936.60

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Solution

The fourth proportional to 1,425.03, 2,134.70 and 936.60 is: 1,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.03 : 2,134.70 = 936.60 : x
  2. Step 2: Convert to fraction form
    1,425.03/2,134.70 = 936.60/x
  3. Step 3: Cross multiply
    1,425.03x = 2,134.70 × 936.60
  4. Step 4: Simplify right side
    1,425.03x = 1,999,360.02
  5. Step 5: Solve for x
    x = 1,999,360.02/1,425.03
  6. Step 6: Final answer
    x = 1,403.03

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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.