Home / 2,975.10-4,105.36-1,779.85

Finding the Fourth Proportional to 2,975.10, 4,105.36 and 1,779.85

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Solution

The fourth proportional to 2,975.10, 4,105.36 and 1,779.85 is: 2,456.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.10 : 4,105.36 = 1,779.85 : x
  2. Step 2: Convert to fraction form
    2,975.10/4,105.36 = 1,779.85/x
  3. Step 3: Cross multiply
    2,975.10x = 4,105.36 × 1,779.85
  4. Step 4: Simplify right side
    2,975.10x = 7,306,915.80
  5. Step 5: Solve for x
    x = 7,306,915.80/2,975.10
  6. Step 6: Final answer
    x = 2,456.02

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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.