Home / 3,945.73-5,912.95-2,897.51

Finding the Fourth Proportional to 3,945.73, 5,912.95 and 2,897.51

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Solution

The fourth proportional to 3,945.73, 5,912.95 and 2,897.51 is: 4,342.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.73 : 5,912.95 = 2,897.51 : x
  2. Step 2: Convert to fraction form
    3,945.73/5,912.95 = 2,897.51/x
  3. Step 3: Cross multiply
    3,945.73x = 5,912.95 × 2,897.51
  4. Step 4: Simplify right side
    3,945.73x = 17,132,794.95
  5. Step 5: Solve for x
    x = 17,132,794.95/3,945.73
  6. Step 6: Final answer
    x = 4,342.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.