Home / 2,603.20-3,905.05-1,369.84

Finding the Fourth Proportional to 2,603.20, 3,905.05 and 1,369.84

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Solution

The fourth proportional to 2,603.20, 3,905.05 and 1,369.84 is: 2,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.20 : 3,905.05 = 1,369.84 : x
  2. Step 2: Convert to fraction form
    2,603.20/3,905.05 = 1,369.84/x
  3. Step 3: Cross multiply
    2,603.20x = 3,905.05 × 1,369.84
  4. Step 4: Simplify right side
    2,603.20x = 5,349,293.69
  5. Step 5: Solve for x
    x = 5,349,293.69/2,603.20
  6. Step 6: Final answer
    x = 2,054.89

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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.