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Finding the Fourth Proportional to 2,603.07, 3,904.21 and 959.25

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Solution

The fourth proportional to 2,603.07, 3,904.21 and 959.25 is: 1,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.07 : 3,904.21 = 959.25 : x
  2. Step 2: Convert to fraction form
    2,603.07/3,904.21 = 959.25/x
  3. Step 3: Cross multiply
    2,603.07x = 3,904.21 × 959.25
  4. Step 4: Simplify right side
    2,603.07x = 3,745,101.93
  5. Step 5: Solve for x
    x = 3,745,101.93/2,603.07
  6. Step 6: Final answer
    x = 1,438.73

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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.