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Finding the Fourth Proportional to 6,485.71, 8,950.28 and 3,834.43

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Solution

The fourth proportional to 6,485.71, 8,950.28 and 3,834.43 is: 5,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.71 : 8,950.28 = 3,834.43 : x
  2. Step 2: Convert to fraction form
    6,485.71/8,950.28 = 3,834.43/x
  3. Step 3: Cross multiply
    6,485.71x = 8,950.28 × 3,834.43
  4. Step 4: Simplify right side
    6,485.71x = 34,319,186.98
  5. Step 5: Solve for x
    x = 34,319,186.98/6,485.71
  6. Step 6: Final answer
    x = 5,291.51

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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.