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Finding the Fourth Proportional to 1,230.68, 1,846.12 and 1,064.48

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Solution

The fourth proportional to 1,230.68, 1,846.12 and 1,064.48 is: 1,596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.68 : 1,846.12 = 1,064.48 : x
  2. Step 2: Convert to fraction form
    1,230.68/1,846.12 = 1,064.48/x
  3. Step 3: Cross multiply
    1,230.68x = 1,846.12 × 1,064.48
  4. Step 4: Simplify right side
    1,230.68x = 1,965,157.82
  5. Step 5: Solve for x
    x = 1,965,157.82/1,230.68
  6. Step 6: Final answer
    x = 1,596.81

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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.