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Finding the Fourth Proportional to 4,749.22, 7,153.81 and 4,388.37

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Solution

The fourth proportional to 4,749.22, 7,153.81 and 4,388.37 is: 6,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.22 : 7,153.81 = 4,388.37 : x
  2. Step 2: Convert to fraction form
    4,749.22/7,153.81 = 4,388.37/x
  3. Step 3: Cross multiply
    4,749.22x = 7,153.81 × 4,388.37
  4. Step 4: Simplify right side
    4,749.22x = 31,393,565.19
  5. Step 5: Solve for x
    x = 31,393,565.19/4,749.22
  6. Step 6: Final answer
    x = 6,610.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.