Home / 2,112.23-2,914.96-1,402.85

Finding the Fourth Proportional to 2,112.23, 2,914.96 and 1,402.85

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Solution

The fourth proportional to 2,112.23, 2,914.96 and 1,402.85 is: 1,935.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.23 : 2,914.96 = 1,402.85 : x
  2. Step 2: Convert to fraction form
    2,112.23/2,914.96 = 1,402.85/x
  3. Step 3: Cross multiply
    2,112.23x = 2,914.96 × 1,402.85
  4. Step 4: Simplify right side
    2,112.23x = 4,089,251.64
  5. Step 5: Solve for x
    x = 4,089,251.64/2,112.23
  6. Step 6: Final answer
    x = 1,935.99

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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.