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Finding the Fourth Proportional to 6,378.58, 8,806.73 and 5,704.29

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Solution

The fourth proportional to 6,378.58, 8,806.73 and 5,704.29 is: 7,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.58 : 8,806.73 = 5,704.29 : x
  2. Step 2: Convert to fraction form
    6,378.58/8,806.73 = 5,704.29/x
  3. Step 3: Cross multiply
    6,378.58x = 8,806.73 × 5,704.29
  4. Step 4: Simplify right side
    6,378.58x = 50,236,153.46
  5. Step 5: Solve for x
    x = 50,236,153.46/6,378.58
  6. Step 6: Final answer
    x = 7,875.76

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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.