Home / 1,408.60-2,103.73-1,135.24

Finding the Fourth Proportional to 1,408.60, 2,103.73 and 1,135.24

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Solution

The fourth proportional to 1,408.60, 2,103.73 and 1,135.24 is: 1,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408.60 : 2,103.73 = 1,135.24 : x
  2. Step 2: Convert to fraction form
    1,408.60/2,103.73 = 1,135.24/x
  3. Step 3: Cross multiply
    1,408.60x = 2,103.73 × 1,135.24
  4. Step 4: Simplify right side
    1,408.60x = 2,388,238.45
  5. Step 5: Solve for x
    x = 2,388,238.45/1,408.60
  6. Step 6: Final answer
    x = 1,695.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.