Home / 3,486.56-4,811.48-1,914.80

Finding the Fourth Proportional to 3,486.56, 4,811.48 and 1,914.80

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Solution

The fourth proportional to 3,486.56, 4,811.48 and 1,914.80 is: 2,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.56 : 4,811.48 = 1,914.80 : x
  2. Step 2: Convert to fraction form
    3,486.56/4,811.48 = 1,914.80/x
  3. Step 3: Cross multiply
    3,486.56x = 4,811.48 × 1,914.80
  4. Step 4: Simplify right side
    3,486.56x = 9,213,021.90
  5. Step 5: Solve for x
    x = 9,213,021.90/3,486.56
  6. Step 6: Final answer
    x = 2,642.44

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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.