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Finding the Fourth Proportional to 4,768.86, 7,151.53 and 1,648.07

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Solution

The fourth proportional to 4,768.86, 7,151.53 and 1,648.07 is: 2,471.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,768.86 : 7,151.53 = 1,648.07 : x
  2. Step 2: Convert to fraction form
    4,768.86/7,151.53 = 1,648.07/x
  3. Step 3: Cross multiply
    4,768.86x = 7,151.53 × 1,648.07
  4. Step 4: Simplify right side
    4,768.86x = 11,786,222.05
  5. Step 5: Solve for x
    x = 11,786,222.05/4,768.86
  6. Step 6: Final answer
    x = 2,471.50

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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.