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Finding the Fourth Proportional to 4,840.78, 7,262.26 and 2,648.38

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Solution

The fourth proportional to 4,840.78, 7,262.26 and 2,648.38 is: 3,973.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,840.78 : 7,262.26 = 2,648.38 : x
  2. Step 2: Convert to fraction form
    4,840.78/7,262.26 = 2,648.38/x
  3. Step 3: Cross multiply
    4,840.78x = 7,262.26 × 2,648.38
  4. Step 4: Simplify right side
    4,840.78x = 19,233,224.14
  5. Step 5: Solve for x
    x = 19,233,224.14/4,840.78
  6. Step 6: Final answer
    x = 3,973.17

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1.5x scale

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.