Home / 2,464.80-3,692.40-1,687.20

Finding the Fourth Proportional to 2,464.80, 3,692.40 and 1,687.20

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Solution

The fourth proportional to 2,464.80, 3,692.40 and 1,687.20 is: 2,527.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,464.80 : 3,692.40 = 1,687.20 : x
  2. Step 2: Convert to fraction form
    2,464.80/3,692.40 = 1,687.20/x
  3. Step 3: Cross multiply
    2,464.80x = 3,692.40 × 1,687.20
  4. Step 4: Simplify right side
    2,464.80x = 6,229,817.28
  5. Step 5: Solve for x
    x = 6,229,817.28/2,464.80
  6. Step 6: Final answer
    x = 2,527.51

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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.