Home / 3,012.80-4,518.96-1,776.32

Finding the Fourth Proportional to 3,012.80, 4,518.96 and 1,776.32

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Solution

The fourth proportional to 3,012.80, 4,518.96 and 1,776.32 is: 2,664.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.80 : 4,518.96 = 1,776.32 : x
  2. Step 2: Convert to fraction form
    3,012.80/4,518.96 = 1,776.32/x
  3. Step 3: Cross multiply
    3,012.80x = 4,518.96 × 1,776.32
  4. Step 4: Simplify right side
    3,012.80x = 8,027,119.03
  5. Step 5: Solve for x
    x = 8,027,119.03/3,012.80
  6. Step 6: Final answer
    x = 2,664.34

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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.