Home / 3,326.70-4,590.71-1,909.41

Finding the Fourth Proportional to 3,326.70, 4,590.71 and 1,909.41

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Solution

The fourth proportional to 3,326.70, 4,590.71 and 1,909.41 is: 2,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.70 : 4,590.71 = 1,909.41 : x
  2. Step 2: Convert to fraction form
    3,326.70/4,590.71 = 1,909.41/x
  3. Step 3: Cross multiply
    3,326.70x = 4,590.71 × 1,909.41
  4. Step 4: Simplify right side
    3,326.70x = 8,765,538.03
  5. Step 5: Solve for x
    x = 8,765,538.03/3,326.70
  6. Step 6: Final answer
    x = 2,634.90

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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.