Home / 2,861.84-4,288.40-1,692.56

Finding the Fourth Proportional to 2,861.84, 4,288.40 and 1,692.56

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Solution

The fourth proportional to 2,861.84, 4,288.40 and 1,692.56 is: 2,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.84 : 4,288.40 = 1,692.56 : x
  2. Step 2: Convert to fraction form
    2,861.84/4,288.40 = 1,692.56/x
  3. Step 3: Cross multiply
    2,861.84x = 4,288.40 × 1,692.56
  4. Step 4: Simplify right side
    2,861.84x = 7,258,374.30
  5. Step 5: Solve for x
    x = 7,258,374.30/2,861.84
  6. Step 6: Final answer
    x = 2,536.26

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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.