Home / 2,958.85-4,084.38-1,779.69

Finding the Fourth Proportional to 2,958.85, 4,084.38 and 1,779.69

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Solution

The fourth proportional to 2,958.85, 4,084.38 and 1,779.69 is: 2,456.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.85 : 4,084.38 = 1,779.69 : x
  2. Step 2: Convert to fraction form
    2,958.85/4,084.38 = 1,779.69/x
  3. Step 3: Cross multiply
    2,958.85x = 4,084.38 × 1,779.69
  4. Step 4: Simplify right side
    2,958.85x = 7,268,921.34
  5. Step 5: Solve for x
    x = 7,268,921.34/2,958.85
  6. Step 6: Final answer
    x = 2,456.68

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1.5x scale

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.