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Finding the Fourth Proportional to 5,329.69, 7,992.05 and 1,818.74

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Solution

The fourth proportional to 5,329.69, 7,992.05 and 1,818.74 is: 2,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.69 : 7,992.05 = 1,818.74 : x
  2. Step 2: Convert to fraction form
    5,329.69/7,992.05 = 1,818.74/x
  3. Step 3: Cross multiply
    5,329.69x = 7,992.05 × 1,818.74
  4. Step 4: Simplify right side
    5,329.69x = 14,535,471.90
  5. Step 5: Solve for x
    x = 14,535,471.90/5,329.69
  6. Step 6: Final answer
    x = 2,727.27

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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.