Home / 2,945.38-4,064.48-1,618.82

Finding the Fourth Proportional to 2,945.38, 4,064.48 and 1,618.82

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Solution

The fourth proportional to 2,945.38, 4,064.48 and 1,618.82 is: 2,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.38 : 4,064.48 = 1,618.82 : x
  2. Step 2: Convert to fraction form
    2,945.38/4,064.48 = 1,618.82/x
  3. Step 3: Cross multiply
    2,945.38x = 4,064.48 × 1,618.82
  4. Step 4: Simplify right side
    2,945.38x = 6,579,661.51
  5. Step 5: Solve for x
    x = 6,579,661.51/2,945.38
  6. Step 6: Final answer
    x = 2,233.89

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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.