Home / 2,579.68-3,556.64-2,107.12

Finding the Fourth Proportional to 2,579.68, 3,556.64 and 2,107.12

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Solution

The fourth proportional to 2,579.68, 3,556.64 and 2,107.12 is: 2,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.68 : 3,556.64 = 2,107.12 : x
  2. Step 2: Convert to fraction form
    2,579.68/3,556.64 = 2,107.12/x
  3. Step 3: Cross multiply
    2,579.68x = 3,556.64 × 2,107.12
  4. Step 4: Simplify right side
    2,579.68x = 7,494,267.28
  5. Step 5: Solve for x
    x = 7,494,267.28/2,579.68
  6. Step 6: Final answer
    x = 2,905.12

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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.