Home / 4,749.07-7,121.98-1,828.39

Finding the Fourth Proportional to 4,749.07, 7,121.98 and 1,828.39

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Solution

The fourth proportional to 4,749.07, 7,121.98 and 1,828.39 is: 2,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.07 : 7,121.98 = 1,828.39 : x
  2. Step 2: Convert to fraction form
    4,749.07/7,121.98 = 1,828.39/x
  3. Step 3: Cross multiply
    4,749.07x = 7,121.98 × 1,828.39
  4. Step 4: Simplify right side
    4,749.07x = 13,021,757.01
  5. Step 5: Solve for x
    x = 13,021,757.01/4,749.07
  6. Step 6: Final answer
    x = 2,741.96

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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.