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Finding the Fourth Proportional to 5,406.94, 8,107.98 and 1,708.48

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Solution

The fourth proportional to 5,406.94, 8,107.98 and 1,708.48 is: 2,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.94 : 8,107.98 = 1,708.48 : x
  2. Step 2: Convert to fraction form
    5,406.94/8,107.98 = 1,708.48/x
  3. Step 3: Cross multiply
    5,406.94x = 8,107.98 × 1,708.48
  4. Step 4: Simplify right side
    5,406.94x = 13,852,321.67
  5. Step 5: Solve for x
    x = 13,852,321.67/5,406.94
  6. Step 6: Final answer
    x = 2,561.95

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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.