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Finding the Fourth Proportional to 6,642.53, 9,958.63 and 4,297.58

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Solution

The fourth proportional to 6,642.53, 9,958.63 and 4,297.58 is: 6,443.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.53 : 9,958.63 = 4,297.58 : x
  2. Step 2: Convert to fraction form
    6,642.53/9,958.63 = 4,297.58/x
  3. Step 3: Cross multiply
    6,642.53x = 9,958.63 × 4,297.58
  4. Step 4: Simplify right side
    6,642.53x = 42,797,998.37
  5. Step 5: Solve for x
    x = 42,797,998.37/6,642.53
  6. Step 6: Final answer
    x = 6,443.03

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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.