Home / 2,149.19-2,965.64-1,205.00

Finding the Fourth Proportional to 2,149.19, 2,965.64 and 1,205.00

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Solution

The fourth proportional to 2,149.19, 2,965.64 and 1,205.00 is: 1,662.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.19 : 2,965.64 = 1,205.00 : x
  2. Step 2: Convert to fraction form
    2,149.19/2,965.64 = 1,205.00/x
  3. Step 3: Cross multiply
    2,149.19x = 2,965.64 × 1,205.00
  4. Step 4: Simplify right side
    2,149.19x = 3,573,575.35
  5. Step 5: Solve for x
    x = 3,573,575.35/2,149.19
  6. Step 6: Final answer
    x = 1,662.76

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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.