Home / 4,914.71-6,782.15-2,790.18

Finding the Fourth Proportional to 4,914.71, 6,782.15 and 2,790.18

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Solution

The fourth proportional to 4,914.71, 6,782.15 and 2,790.18 is: 3,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.71 : 6,782.15 = 2,790.18 : x
  2. Step 2: Convert to fraction form
    4,914.71/6,782.15 = 2,790.18/x
  3. Step 3: Cross multiply
    4,914.71x = 6,782.15 × 2,790.18
  4. Step 4: Simplify right side
    4,914.71x = 18,923,419.29
  5. Step 5: Solve for x
    x = 18,923,419.29/4,914.71
  6. Step 6: Final answer
    x = 3,850.36

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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.