Home / 1,619.12-2,234.57-1,029.67

Finding the Fourth Proportional to 1,619.12, 2,234.57 and 1,029.67

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Solution

The fourth proportional to 1,619.12, 2,234.57 and 1,029.67 is: 1,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.12 : 2,234.57 = 1,029.67 : x
  2. Step 2: Convert to fraction form
    1,619.12/2,234.57 = 1,029.67/x
  3. Step 3: Cross multiply
    1,619.12x = 2,234.57 × 1,029.67
  4. Step 4: Simplify right side
    1,619.12x = 2,300,858.96
  5. Step 5: Solve for x
    x = 2,300,858.96/1,619.12
  6. Step 6: Final answer
    x = 1,421.05

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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.