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Finding the Fourth Proportional to 1,466.68, 2,199.67 and 426.41

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Solution

The fourth proportional to 1,466.68, 2,199.67 and 426.41 is: 639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,466.68 : 2,199.67 = 426.41 : x
  2. Step 2: Convert to fraction form
    1,466.68/2,199.67 = 426.41/x
  3. Step 3: Cross multiply
    1,466.68x = 2,199.67 × 426.41
  4. Step 4: Simplify right side
    1,466.68x = 937,948.15
  5. Step 5: Solve for x
    x = 937,948.15/1,466.68
  6. Step 6: Final answer
    x = 639.51

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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.