Home / 3,019.12-4,166.50-1,692.80

Finding the Fourth Proportional to 3,019.12, 4,166.50 and 1,692.80

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Solution

The fourth proportional to 3,019.12, 4,166.50 and 1,692.80 is: 2,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.12 : 4,166.50 = 1,692.80 : x
  2. Step 2: Convert to fraction form
    3,019.12/4,166.50 = 1,692.80/x
  3. Step 3: Cross multiply
    3,019.12x = 4,166.50 × 1,692.80
  4. Step 4: Simplify right side
    3,019.12x = 7,053,051.20
  5. Step 5: Solve for x
    x = 7,053,051.20/3,019.12
  6. Step 6: Final answer
    x = 2,336.13

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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.