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Finding the Fourth Proportional to 5,379.77, 8,070.12 and 1,484.17

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Solution

The fourth proportional to 5,379.77, 8,070.12 and 1,484.17 is: 2,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.77 : 8,070.12 = 1,484.17 : x
  2. Step 2: Convert to fraction form
    5,379.77/8,070.12 = 1,484.17/x
  3. Step 3: Cross multiply
    5,379.77x = 8,070.12 × 1,484.17
  4. Step 4: Simplify right side
    5,379.77x = 11,977,455.68
  5. Step 5: Solve for x
    x = 11,977,455.68/5,379.77
  6. Step 6: Final answer
    x = 2,226.39

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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.