Home / 2,211.41-3,051.66-1,216.67

Finding the Fourth Proportional to 2,211.41, 3,051.66 and 1,216.67

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Solution

The fourth proportional to 2,211.41, 3,051.66 and 1,216.67 is: 1,678.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.41 : 3,051.66 = 1,216.67 : x
  2. Step 2: Convert to fraction form
    2,211.41/3,051.66 = 1,216.67/x
  3. Step 3: Cross multiply
    2,211.41x = 3,051.66 × 1,216.67
  4. Step 4: Simplify right side
    2,211.41x = 3,712,863.17
  5. Step 5: Solve for x
    x = 3,712,863.17/2,211.41
  6. Step 6: Final answer
    x = 1,678.96

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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.