Home / 2,651.23-3,658.68-1,603.48

Finding the Fourth Proportional to 2,651.23, 3,658.68 and 1,603.48

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Solution

The fourth proportional to 2,651.23, 3,658.68 and 1,603.48 is: 2,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.23 : 3,658.68 = 1,603.48 : x
  2. Step 2: Convert to fraction form
    2,651.23/3,658.68 = 1,603.48/x
  3. Step 3: Cross multiply
    2,651.23x = 3,658.68 × 1,603.48
  4. Step 4: Simplify right side
    2,651.23x = 5,866,620.21
  5. Step 5: Solve for x
    x = 5,866,620.21/2,651.23
  6. Step 6: Final answer
    x = 2,212.79

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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.