Home / 2,692.28-4,038.73-1,231.25

Finding the Fourth Proportional to 2,692.28, 4,038.73 and 1,231.25

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Solution

The fourth proportional to 2,692.28, 4,038.73 and 1,231.25 is: 1,847.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.28 : 4,038.73 = 1,231.25 : x
  2. Step 2: Convert to fraction form
    2,692.28/4,038.73 = 1,231.25/x
  3. Step 3: Cross multiply
    2,692.28x = 4,038.73 × 1,231.25
  4. Step 4: Simplify right side
    2,692.28x = 4,972,686.31
  5. Step 5: Solve for x
    x = 4,972,686.31/2,692.28
  6. Step 6: Final answer
    x = 1,847.02

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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.