Home / 2,675.35-3,693.21-1,909.30

Finding the Fourth Proportional to 2,675.35, 3,693.21 and 1,909.30

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Solution

The fourth proportional to 2,675.35, 3,693.21 and 1,909.30 is: 2,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.35 : 3,693.21 = 1,909.30 : x
  2. Step 2: Convert to fraction form
    2,675.35/3,693.21 = 1,909.30/x
  3. Step 3: Cross multiply
    2,675.35x = 3,693.21 × 1,909.30
  4. Step 4: Simplify right side
    2,675.35x = 7,051,445.85
  5. Step 5: Solve for x
    x = 7,051,445.85/2,675.35
  6. Step 6: Final answer
    x = 2,635.71

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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.