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Finding the Fourth Proportional to 5,379.82, 8,070.20 and 1,484.23

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Solution

The fourth proportional to 5,379.82, 8,070.20 and 1,484.23 is: 2,226.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.82 : 8,070.20 = 1,484.23 : x
  2. Step 2: Convert to fraction form
    5,379.82/8,070.20 = 1,484.23/x
  3. Step 3: Cross multiply
    5,379.82x = 8,070.20 × 1,484.23
  4. Step 4: Simplify right side
    5,379.82x = 11,978,021.00
  5. Step 5: Solve for x
    x = 11,978,021.00/5,379.82
  6. Step 6: Final answer
    x = 2,226.47

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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.