Home / 3,140.90-4,334.55-1,814.60

Finding the Fourth Proportional to 3,140.90, 4,334.55 and 1,814.60

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Solution

The fourth proportional to 3,140.90, 4,334.55 and 1,814.60 is: 2,504.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.90 : 4,334.55 = 1,814.60 : x
  2. Step 2: Convert to fraction form
    3,140.90/4,334.55 = 1,814.60/x
  3. Step 3: Cross multiply
    3,140.90x = 4,334.55 × 1,814.60
  4. Step 4: Simplify right side
    3,140.90x = 7,865,474.43
  5. Step 5: Solve for x
    x = 7,865,474.43/3,140.90
  6. Step 6: Final answer
    x = 2,504.21

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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.