Home / 3,803.68-5,246.80-2,811.52

Finding the Fourth Proportional to 3,803.68, 5,246.80 and 2,811.52

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Solution

The fourth proportional to 3,803.68, 5,246.80 and 2,811.52 is: 3,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.68 : 5,246.80 = 2,811.52 : x
  2. Step 2: Convert to fraction form
    3,803.68/5,246.80 = 2,811.52/x
  3. Step 3: Cross multiply
    3,803.68x = 5,246.80 × 2,811.52
  4. Step 4: Simplify right side
    3,803.68x = 14,751,483.14
  5. Step 5: Solve for x
    x = 14,751,483.14/3,803.68
  6. Step 6: Final answer
    x = 3,878.21

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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.