Home / 6,742.88-10,103.20-4,140.32

Finding the Fourth Proportional to 6,742.88, 10,103.20 and 4,140.32

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Solution

The fourth proportional to 6,742.88, 10,103.20 and 4,140.32 is: 6,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.88 : 10,103.20 = 4,140.32 : x
  2. Step 2: Convert to fraction form
    6,742.88/10,103.20 = 4,140.32/x
  3. Step 3: Cross multiply
    6,742.88x = 10,103.20 × 4,140.32
  4. Step 4: Simplify right side
    6,742.88x = 41,830,481.02
  5. Step 5: Solve for x
    x = 41,830,481.02/6,742.88
  6. Step 6: Final answer
    x = 6,203.65

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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.