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Finding the Fourth Proportional to 1,379.04, 1,900.98 and 1,168.44

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Solution

The fourth proportional to 1,379.04, 1,900.98 and 1,168.44 is: 1,610.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.04 : 1,900.98 = 1,168.44 : x
  2. Step 2: Convert to fraction form
    1,379.04/1,900.98 = 1,168.44/x
  3. Step 3: Cross multiply
    1,379.04x = 1,900.98 × 1,168.44
  4. Step 4: Simplify right side
    1,379.04x = 2,221,181.07
  5. Step 5: Solve for x
    x = 2,221,181.07/1,379.04
  6. Step 6: Final answer
    x = 1,610.67

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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.