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Finding the Fourth Proportional to 6,455.42, 9,679.23 and 2,896.89

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Solution

The fourth proportional to 6,455.42, 9,679.23 and 2,896.89 is: 4,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.42 : 9,679.23 = 2,896.89 : x
  2. Step 2: Convert to fraction form
    6,455.42/9,679.23 = 2,896.89/x
  3. Step 3: Cross multiply
    6,455.42x = 9,679.23 × 2,896.89
  4. Step 4: Simplify right side
    6,455.42x = 28,039,664.59
  5. Step 5: Solve for x
    x = 28,039,664.59/6,455.42
  6. Step 6: Final answer
    x = 4,343.58

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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.