Home / 1,848.50-2,772.75-480.50

Finding the Fourth Proportional to 1,848.50, 2,772.75 and 480.50

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Solution

The fourth proportional to 1,848.50, 2,772.75 and 480.50 is: 720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.50 : 2,772.75 = 480.50 : x
  2. Step 2: Convert to fraction form
    1,848.50/2,772.75 = 480.50/x
  3. Step 3: Cross multiply
    1,848.50x = 2,772.75 × 480.50
  4. Step 4: Simplify right side
    1,848.50x = 1,332,306.38
  5. Step 5: Solve for x
    x = 1,332,306.38/1,848.50
  6. Step 6: Final answer
    x = 720.75

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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.