Home / 2,143.23-2,958.61-1,259.08

Finding the Fourth Proportional to 2,143.23, 2,958.61 and 1,259.08

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Solution

The fourth proportional to 2,143.23, 2,958.61 and 1,259.08 is: 1,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.23 : 2,958.61 = 1,259.08 : x
  2. Step 2: Convert to fraction form
    2,143.23/2,958.61 = 1,259.08/x
  3. Step 3: Cross multiply
    2,143.23x = 2,958.61 × 1,259.08
  4. Step 4: Simplify right side
    2,143.23x = 3,725,126.68
  5. Step 5: Solve for x
    x = 3,725,126.68/2,143.23
  6. Step 6: Final answer
    x = 1,738.09

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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.