Home / 3,914.67-5,402.40-2,236.35

Finding the Fourth Proportional to 3,914.67, 5,402.40 and 2,236.35

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Solution

The fourth proportional to 3,914.67, 5,402.40 and 2,236.35 is: 3,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.67 : 5,402.40 = 2,236.35 : x
  2. Step 2: Convert to fraction form
    3,914.67/5,402.40 = 2,236.35/x
  3. Step 3: Cross multiply
    3,914.67x = 5,402.40 × 2,236.35
  4. Step 4: Simplify right side
    3,914.67x = 12,081,657.24
  5. Step 5: Solve for x
    x = 12,081,657.24/3,914.67
  6. Step 6: Final answer
    x = 3,086.25

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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.