Home / 2,107.63-3,154.56-1,905.54

Finding the Fourth Proportional to 2,107.63, 3,154.56 and 1,905.54

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Solution

The fourth proportional to 2,107.63, 3,154.56 and 1,905.54 is: 2,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.63 : 3,154.56 = 1,905.54 : x
  2. Step 2: Convert to fraction form
    2,107.63/3,154.56 = 1,905.54/x
  3. Step 3: Cross multiply
    2,107.63x = 3,154.56 × 1,905.54
  4. Step 4: Simplify right side
    2,107.63x = 6,011,140.26
  5. Step 5: Solve for x
    x = 6,011,140.26/2,107.63
  6. Step 6: Final answer
    x = 2,852.09

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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.