Home / 3,486.39-4,811.25-1,914.49

Finding the Fourth Proportional to 3,486.39, 4,811.25 and 1,914.49

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Solution

The fourth proportional to 3,486.39, 4,811.25 and 1,914.49 is: 2,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.39 : 4,811.25 = 1,914.49 : x
  2. Step 2: Convert to fraction form
    3,486.39/4,811.25 = 1,914.49/x
  3. Step 3: Cross multiply
    3,486.39x = 4,811.25 × 1,914.49
  4. Step 4: Simplify right side
    3,486.39x = 9,211,090.01
  5. Step 5: Solve for x
    x = 9,211,090.01/3,486.39
  6. Step 6: Final answer
    x = 2,642.01

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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.