Home / 2,211.24-3,051.44-1,216.52

Finding the Fourth Proportional to 2,211.24, 3,051.44 and 1,216.52

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Solution

The fourth proportional to 2,211.24, 3,051.44 and 1,216.52 is: 1,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.24 : 3,051.44 = 1,216.52 : x
  2. Step 2: Convert to fraction form
    2,211.24/3,051.44 = 1,216.52/x
  3. Step 3: Cross multiply
    2,211.24x = 3,051.44 × 1,216.52
  4. Step 4: Simplify right side
    2,211.24x = 3,712,137.79
  5. Step 5: Solve for x
    x = 3,712,137.79/2,211.24
  6. Step 6: Final answer
    x = 1,678.76

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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.