Home / 1,289.99-1,935.16-468.15

Finding the Fourth Proportional to 1,289.99, 1,935.16 and 468.15

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Solution

The fourth proportional to 1,289.99, 1,935.16 and 468.15 is: 702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289.99 : 1,935.16 = 468.15 : x
  2. Step 2: Convert to fraction form
    1,289.99/1,935.16 = 468.15/x
  3. Step 3: Cross multiply
    1,289.99x = 1,935.16 × 468.15
  4. Step 4: Simplify right side
    1,289.99x = 905,936.73
  5. Step 5: Solve for x
    x = 905,936.73/1,289.99
  6. Step 6: Final answer
    x = 702.28

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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.