Home / 5,628.42-8,439.93-1,929.69

Finding the Fourth Proportional to 5,628.42, 8,439.93 and 1,929.69

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Solution

The fourth proportional to 5,628.42, 8,439.93 and 1,929.69 is: 2,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.42 : 8,439.93 = 1,929.69 : x
  2. Step 2: Convert to fraction form
    5,628.42/8,439.93 = 1,929.69/x
  3. Step 3: Cross multiply
    5,628.42x = 8,439.93 × 1,929.69
  4. Step 4: Simplify right side
    5,628.42x = 16,286,448.52
  5. Step 5: Solve for x
    x = 16,286,448.52/5,628.42
  6. Step 6: Final answer
    x = 2,893.61

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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.