Home / 5,539.71-8,309.50-1,379.76

Finding the Fourth Proportional to 5,539.71, 8,309.50 and 1,379.76

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Solution

The fourth proportional to 5,539.71, 8,309.50 and 1,379.76 is: 2,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.71 : 8,309.50 = 1,379.76 : x
  2. Step 2: Convert to fraction form
    5,539.71/8,309.50 = 1,379.76/x
  3. Step 3: Cross multiply
    5,539.71x = 8,309.50 × 1,379.76
  4. Step 4: Simplify right side
    5,539.71x = 11,465,115.72
  5. Step 5: Solve for x
    x = 11,465,115.72/5,539.71
  6. Step 6: Final answer
    x = 2,069.62

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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.