Home / 1,951.20-2,692.64-1,155.07

Finding the Fourth Proportional to 1,951.20, 2,692.64 and 1,155.07

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Solution

The fourth proportional to 1,951.20, 2,692.64 and 1,155.07 is: 1,593.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.20 : 2,692.64 = 1,155.07 : x
  2. Step 2: Convert to fraction form
    1,951.20/2,692.64 = 1,155.07/x
  3. Step 3: Cross multiply
    1,951.20x = 2,692.64 × 1,155.07
  4. Step 4: Simplify right side
    1,951.20x = 3,110,187.68
  5. Step 5: Solve for x
    x = 3,110,187.68/1,951.20
  6. Step 6: Final answer
    x = 1,593.99

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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.