Home / 3,863.45-5,790.70-1,779.08

Finding the Fourth Proportional to 3,863.45, 5,790.70 and 1,779.08

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Solution

The fourth proportional to 3,863.45, 5,790.70 and 1,779.08 is: 2,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.45 : 5,790.70 = 1,779.08 : x
  2. Step 2: Convert to fraction form
    3,863.45/5,790.70 = 1,779.08/x
  3. Step 3: Cross multiply
    3,863.45x = 5,790.70 × 1,779.08
  4. Step 4: Simplify right side
    3,863.45x = 10,302,118.56
  5. Step 5: Solve for x
    x = 10,302,118.56/3,863.45
  6. Step 6: Final answer
    x = 2,666.56

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1.5x scale

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.