Home / 2,945.89-4,418.84-1,645.84

Finding the Fourth Proportional to 2,945.89, 4,418.84 and 1,645.84

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Solution

The fourth proportional to 2,945.89, 4,418.84 and 1,645.84 is: 2,468.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.89 : 4,418.84 = 1,645.84 : x
  2. Step 2: Convert to fraction form
    2,945.89/4,418.84 = 1,645.84/x
  3. Step 3: Cross multiply
    2,945.89x = 4,418.84 × 1,645.84
  4. Step 4: Simplify right side
    2,945.89x = 7,272,703.63
  5. Step 5: Solve for x
    x = 7,272,703.63/2,945.89
  6. Step 6: Final answer
    x = 2,468.76

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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.