Home / 2,073.90-3,112.20-1,880.85

Finding the Fourth Proportional to 2,073.90, 3,112.20 and 1,880.85

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Solution

The fourth proportional to 2,073.90, 3,112.20 and 1,880.85 is: 2,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.90 : 3,112.20 = 1,880.85 : x
  2. Step 2: Convert to fraction form
    2,073.90/3,112.20 = 1,880.85/x
  3. Step 3: Cross multiply
    2,073.90x = 3,112.20 × 1,880.85
  4. Step 4: Simplify right side
    2,073.90x = 5,853,581.37
  5. Step 5: Solve for x
    x = 5,853,581.37/2,073.90
  6. Step 6: Final answer
    x = 2,822.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.