Home / 2,012.98-2,777.84-1,116.68

Finding the Fourth Proportional to 2,012.98, 2,777.84 and 1,116.68

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Solution

The fourth proportional to 2,012.98, 2,777.84 and 1,116.68 is: 1,540.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.98 : 2,777.84 = 1,116.68 : x
  2. Step 2: Convert to fraction form
    2,012.98/2,777.84 = 1,116.68/x
  3. Step 3: Cross multiply
    2,012.98x = 2,777.84 × 1,116.68
  4. Step 4: Simplify right side
    2,012.98x = 3,101,958.37
  5. Step 5: Solve for x
    x = 3,101,958.37/2,012.98
  6. Step 6: Final answer
    x = 1,540.98

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1.5x scale

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.