Home / 1,318.14-1,977.44-452.25

Finding the Fourth Proportional to 1,318.14, 1,977.44 and 452.25

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Solution

The fourth proportional to 1,318.14, 1,977.44 and 452.25 is: 678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.14 : 1,977.44 = 452.25 : x
  2. Step 2: Convert to fraction form
    1,318.14/1,977.44 = 452.25/x
  3. Step 3: Cross multiply
    1,318.14x = 1,977.44 × 452.25
  4. Step 4: Simplify right side
    1,318.14x = 894,294.98
  5. Step 5: Solve for x
    x = 894,294.98/1,318.14
  6. Step 6: Final answer
    x = 678.45

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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.