Home / 2,145.26-2,960.47-1,201.05

Finding the Fourth Proportional to 2,145.26, 2,960.47 and 1,201.05

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Solution

The fourth proportional to 2,145.26, 2,960.47 and 1,201.05 is: 1,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.26 : 2,960.47 = 1,201.05 : x
  2. Step 2: Convert to fraction form
    2,145.26/2,960.47 = 1,201.05/x
  3. Step 3: Cross multiply
    2,145.26x = 2,960.47 × 1,201.05
  4. Step 4: Simplify right side
    2,145.26x = 3,555,675.57
  5. Step 5: Solve for x
    x = 3,555,675.57/2,145.26
  6. Step 6: Final answer
    x = 1,657.46

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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.