Home / 1,325.57-1,983.35-1,190.84

Finding the Fourth Proportional to 1,325.57, 1,983.35 and 1,190.84

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Solution

The fourth proportional to 1,325.57, 1,983.35 and 1,190.84 is: 1,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.57 : 1,983.35 = 1,190.84 : x
  2. Step 2: Convert to fraction form
    1,325.57/1,983.35 = 1,190.84/x
  3. Step 3: Cross multiply
    1,325.57x = 1,983.35 × 1,190.84
  4. Step 4: Simplify right side
    1,325.57x = 2,361,845.57
  5. Step 5: Solve for x
    x = 2,361,845.57/1,325.57
  6. Step 6: Final answer
    x = 1,781.77

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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.