Home / 3,486.63-4,811.57-1,914.73

Finding the Fourth Proportional to 3,486.63, 4,811.57 and 1,914.73

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Solution

The fourth proportional to 3,486.63, 4,811.57 and 1,914.73 is: 2,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.63 : 4,811.57 = 1,914.73 : x
  2. Step 2: Convert to fraction form
    3,486.63/4,811.57 = 1,914.73/x
  3. Step 3: Cross multiply
    3,486.63x = 4,811.57 × 1,914.73
  4. Step 4: Simplify right side
    3,486.63x = 9,212,857.43
  5. Step 5: Solve for x
    x = 9,212,857.43/3,486.63
  6. Step 6: Final answer
    x = 2,642.34

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Double scale
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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.