Home / 2,945.12-4,064.22-1,618.79

Finding the Fourth Proportional to 2,945.12, 4,064.22 and 1,618.79

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Solution

The fourth proportional to 2,945.12, 4,064.22 and 1,618.79 is: 2,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.12 : 4,064.22 = 1,618.79 : x
  2. Step 2: Convert to fraction form
    2,945.12/4,064.22 = 1,618.79/x
  3. Step 3: Cross multiply
    2,945.12x = 4,064.22 × 1,618.79
  4. Step 4: Simplify right side
    2,945.12x = 6,579,098.37
  5. Step 5: Solve for x
    x = 6,579,098.37/2,945.12
  6. Step 6: Final answer
    x = 2,233.90

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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.