Home / 3,486.68-4,811.74-1,914.88

Finding the Fourth Proportional to 3,486.68, 4,811.74 and 1,914.88

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Solution

The fourth proportional to 3,486.68, 4,811.74 and 1,914.88 is: 2,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.68 : 4,811.74 = 1,914.88 : x
  2. Step 2: Convert to fraction form
    3,486.68/4,811.74 = 1,914.88/x
  3. Step 3: Cross multiply
    3,486.68x = 4,811.74 × 1,914.88
  4. Step 4: Simplify right side
    3,486.68x = 9,213,904.69
  5. Step 5: Solve for x
    x = 9,213,904.69/3,486.68
  6. Step 6: Final answer
    x = 2,642.60

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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.