Home / 3,135.55-4,323.82-2,190.99

Finding the Fourth Proportional to 3,135.55, 4,323.82 and 2,190.99

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Solution

The fourth proportional to 3,135.55, 4,323.82 and 2,190.99 is: 3,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.55 : 4,323.82 = 2,190.99 : x
  2. Step 2: Convert to fraction form
    3,135.55/4,323.82 = 2,190.99/x
  3. Step 3: Cross multiply
    3,135.55x = 4,323.82 × 2,190.99
  4. Step 4: Simplify right side
    3,135.55x = 9,473,459.28
  5. Step 5: Solve for x
    x = 9,473,459.28/3,135.55
  6. Step 6: Final answer
    x = 3,021.31

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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.