Home / 2,273.55-3,135.96-1,388.22

Finding the Fourth Proportional to 2,273.55, 3,135.96 and 1,388.22

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Solution

The fourth proportional to 2,273.55, 3,135.96 and 1,388.22 is: 1,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.55 : 3,135.96 = 1,388.22 : x
  2. Step 2: Convert to fraction form
    2,273.55/3,135.96 = 1,388.22/x
  3. Step 3: Cross multiply
    2,273.55x = 3,135.96 × 1,388.22
  4. Step 4: Simplify right side
    2,273.55x = 4,353,402.39
  5. Step 5: Solve for x
    x = 4,353,402.39/2,273.55
  6. Step 6: Final answer
    x = 1,914.80

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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.