Home / 2,107.45-2,908.61-1,268.19

Finding the Fourth Proportional to 2,107.45, 2,908.61 and 1,268.19

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Solution

The fourth proportional to 2,107.45, 2,908.61 and 1,268.19 is: 1,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.45 : 2,908.61 = 1,268.19 : x
  2. Step 2: Convert to fraction form
    2,107.45/2,908.61 = 1,268.19/x
  3. Step 3: Cross multiply
    2,107.45x = 2,908.61 × 1,268.19
  4. Step 4: Simplify right side
    2,107.45x = 3,688,668.53
  5. Step 5: Solve for x
    x = 3,688,668.53/2,107.45
  6. Step 6: Final answer
    x = 1,750.30

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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.