Home / 1,468.13-2,201.86-428.14

Finding the Fourth Proportional to 1,468.13, 2,201.86 and 428.14

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Solution

The fourth proportional to 1,468.13, 2,201.86 and 428.14 is: 642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.13 : 2,201.86 = 428.14 : x
  2. Step 2: Convert to fraction form
    1,468.13/2,201.86 = 428.14/x
  3. Step 3: Cross multiply
    1,468.13x = 2,201.86 × 428.14
  4. Step 4: Simplify right side
    1,468.13x = 942,704.34
  5. Step 5: Solve for x
    x = 942,704.34/1,468.13
  6. Step 6: Final answer
    x = 642.11

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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.