Home / 2,270.38-3,133.45-1,431.46

Finding the Fourth Proportional to 2,270.38, 3,133.45 and 1,431.46

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Solution

The fourth proportional to 2,270.38, 3,133.45 and 1,431.46 is: 1,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.38 : 3,133.45 = 1,431.46 : x
  2. Step 2: Convert to fraction form
    2,270.38/3,133.45 = 1,431.46/x
  3. Step 3: Cross multiply
    2,270.38x = 3,133.45 × 1,431.46
  4. Step 4: Simplify right side
    2,270.38x = 4,485,403.60
  5. Step 5: Solve for x
    x = 4,485,403.60/2,270.38
  6. Step 6: Final answer
    x = 1,975.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.