Home / 3,112.24-4,295.60-2,119.90

Finding the Fourth Proportional to 3,112.24, 4,295.60 and 2,119.90

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Solution

The fourth proportional to 3,112.24, 4,295.60 and 2,119.90 is: 2,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.24 : 4,295.60 = 2,119.90 : x
  2. Step 2: Convert to fraction form
    3,112.24/4,295.60 = 2,119.90/x
  3. Step 3: Cross multiply
    3,112.24x = 4,295.60 × 2,119.90
  4. Step 4: Simplify right side
    3,112.24x = 9,106,242.44
  5. Step 5: Solve for x
    x = 9,106,242.44/3,112.24
  6. Step 6: Final answer
    x = 2,925.94

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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.