Home / 2,211.16-3,316.74-1,116.45

Finding the Fourth Proportional to 2,211.16, 3,316.74 and 1,116.45

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Solution

The fourth proportional to 2,211.16, 3,316.74 and 1,116.45 is: 1,674.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.16 : 3,316.74 = 1,116.45 : x
  2. Step 2: Convert to fraction form
    2,211.16/3,316.74 = 1,116.45/x
  3. Step 3: Cross multiply
    2,211.16x = 3,316.74 × 1,116.45
  4. Step 4: Simplify right side
    2,211.16x = 3,702,974.37
  5. Step 5: Solve for x
    x = 3,702,974.37/2,211.16
  6. Step 6: Final answer
    x = 1,674.68

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1.5x scale

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.