Home / 2,145.20-2,960.36-1,201.00

Finding the Fourth Proportional to 2,145.20, 2,960.36 and 1,201.00

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Solution

The fourth proportional to 2,145.20, 2,960.36 and 1,201.00 is: 1,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.20 : 2,960.36 = 1,201.00 : x
  2. Step 2: Convert to fraction form
    2,145.20/2,960.36 = 1,201.00/x
  3. Step 3: Cross multiply
    2,145.20x = 2,960.36 × 1,201.00
  4. Step 4: Simplify right side
    2,145.20x = 3,555,403.52
  5. Step 5: Solve for x
    x = 3,555,403.52/2,145.20
  6. Step 6: Final answer
    x = 1,657.37

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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.