Home / 2,250.90-3,382.29-1,211.67

Finding the Fourth Proportional to 2,250.90, 3,382.29 and 1,211.67

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Solution

The fourth proportional to 2,250.90, 3,382.29 and 1,211.67 is: 1,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.90 : 3,382.29 = 1,211.67 : x
  2. Step 2: Convert to fraction form
    2,250.90/3,382.29 = 1,211.67/x
  3. Step 3: Cross multiply
    2,250.90x = 3,382.29 × 1,211.67
  4. Step 4: Simplify right side
    2,250.90x = 4,098,219.32
  5. Step 5: Solve for x
    x = 4,098,219.32/2,250.90
  6. Step 6: Final answer
    x = 1,820.70

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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.