Home / 2,645.20-3,653.49-1,759.42

Finding the Fourth Proportional to 2,645.20, 3,653.49 and 1,759.42

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Solution

The fourth proportional to 2,645.20, 3,653.49 and 1,759.42 is: 2,430.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.20 : 3,653.49 = 1,759.42 : x
  2. Step 2: Convert to fraction form
    2,645.20/3,653.49 = 1,759.42/x
  3. Step 3: Cross multiply
    2,645.20x = 3,653.49 × 1,759.42
  4. Step 4: Simplify right side
    2,645.20x = 6,428,023.38
  5. Step 5: Solve for x
    x = 6,428,023.38/2,645.20
  6. Step 6: Final answer
    x = 2,430.07

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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.