Home / 3,186.31-4,779.46-2,090.42

Finding the Fourth Proportional to 3,186.31, 4,779.46 and 2,090.42

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Solution

The fourth proportional to 3,186.31, 4,779.46 and 2,090.42 is: 3,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.31 : 4,779.46 = 2,090.42 : x
  2. Step 2: Convert to fraction form
    3,186.31/4,779.46 = 2,090.42/x
  3. Step 3: Cross multiply
    3,186.31x = 4,779.46 × 2,090.42
  4. Step 4: Simplify right side
    3,186.31x = 9,991,075.41
  5. Step 5: Solve for x
    x = 9,991,075.41/3,186.31
  6. Step 6: Final answer
    x = 3,135.62

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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.