Home / 3,206.66-4,811.81-1,977.08

Finding the Fourth Proportional to 3,206.66, 4,811.81 and 1,977.08

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Solution

The fourth proportional to 3,206.66, 4,811.81 and 1,977.08 is: 2,966.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.66 : 4,811.81 = 1,977.08 : x
  2. Step 2: Convert to fraction form
    3,206.66/4,811.81 = 1,977.08/x
  3. Step 3: Cross multiply
    3,206.66x = 4,811.81 × 1,977.08
  4. Step 4: Simplify right side
    3,206.66x = 9,513,299.37
  5. Step 5: Solve for x
    x = 9,513,299.37/3,206.66
  6. Step 6: Final answer
    x = 2,966.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.