Home / 3,779.16-5,666.97-1,405.59

Finding the Fourth Proportional to 3,779.16, 5,666.97 and 1,405.59

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Solution

The fourth proportional to 3,779.16, 5,666.97 and 1,405.59 is: 2,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.16 : 5,666.97 = 1,405.59 : x
  2. Step 2: Convert to fraction form
    3,779.16/5,666.97 = 1,405.59/x
  3. Step 3: Cross multiply
    3,779.16x = 5,666.97 × 1,405.59
  4. Step 4: Simplify right side
    3,779.16x = 7,965,436.36
  5. Step 5: Solve for x
    x = 7,965,436.36/3,779.16
  6. Step 6: Final answer
    x = 2,107.73

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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.