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Finding the Fourth Proportional to 6,654.42, 9,978.39 and 2,953.53

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Solution

The fourth proportional to 6,654.42, 9,978.39 and 2,953.53 is: 4,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654.42 : 9,978.39 = 2,953.53 : x
  2. Step 2: Convert to fraction form
    6,654.42/9,978.39 = 2,953.53/x
  3. Step 3: Cross multiply
    6,654.42x = 9,978.39 × 2,953.53
  4. Step 4: Simplify right side
    6,654.42x = 29,471,474.22
  5. Step 5: Solve for x
    x = 29,471,474.22/6,654.42
  6. Step 6: Final answer
    x = 4,428.86

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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.