Home / 2,310.90-3,190.07-1,779.59

Finding the Fourth Proportional to 2,310.90, 3,190.07 and 1,779.59

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Solution

The fourth proportional to 2,310.90, 3,190.07 and 1,779.59 is: 2,456.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.90 : 3,190.07 = 1,779.59 : x
  2. Step 2: Convert to fraction form
    2,310.90/3,190.07 = 1,779.59/x
  3. Step 3: Cross multiply
    2,310.90x = 3,190.07 × 1,779.59
  4. Step 4: Simplify right side
    2,310.90x = 5,677,001.14
  5. Step 5: Solve for x
    x = 5,677,001.14/2,310.90
  6. Step 6: Final answer
    x = 2,456.62

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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.