Home / 5,628.20-8,440.71-2,117.93

Finding the Fourth Proportional to 5,628.20, 8,440.71 and 2,117.93

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Solution

The fourth proportional to 5,628.20, 8,440.71 and 2,117.93 is: 3,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.20 : 8,440.71 = 2,117.93 : x
  2. Step 2: Convert to fraction form
    5,628.20/8,440.71 = 2,117.93/x
  3. Step 3: Cross multiply
    5,628.20x = 8,440.71 × 2,117.93
  4. Step 4: Simplify right side
    5,628.20x = 17,876,790.73
  5. Step 5: Solve for x
    x = 17,876,790.73/5,628.20
  6. Step 6: Final answer
    x = 3,176.29

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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.