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Finding the Fourth Proportional to 5,650.88, 7,800.92 and 3,973.71

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Solution

The fourth proportional to 5,650.88, 7,800.92 and 3,973.71 is: 5,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,650.88 : 7,800.92 = 3,973.71 : x
  2. Step 2: Convert to fraction form
    5,650.88/7,800.92 = 3,973.71/x
  3. Step 3: Cross multiply
    5,650.88x = 7,800.92 × 3,973.71
  4. Step 4: Simplify right side
    5,650.88x = 30,998,573.94
  5. Step 5: Solve for x
    x = 30,998,573.94/5,650.88
  6. Step 6: Final answer
    x = 5,485.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.