Home / 3,932.23-5,420.77-2,749.63

Finding the Fourth Proportional to 3,932.23, 5,420.77 and 2,749.63

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Solution

The fourth proportional to 3,932.23, 5,420.77 and 2,749.63 is: 3,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.23 : 5,420.77 = 2,749.63 : x
  2. Step 2: Convert to fraction form
    3,932.23/5,420.77 = 2,749.63/x
  3. Step 3: Cross multiply
    3,932.23x = 5,420.77 × 2,749.63
  4. Step 4: Simplify right side
    3,932.23x = 14,905,111.82
  5. Step 5: Solve for x
    x = 14,905,111.82/3,932.23
  6. Step 6: Final answer
    x = 3,790.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.