Home / 6,440.76-8,889.48-4,083.12

Finding the Fourth Proportional to 6,440.76, 8,889.48 and 4,083.12

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Solution

The fourth proportional to 6,440.76, 8,889.48 and 4,083.12 is: 5,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.76 : 8,889.48 = 4,083.12 : x
  2. Step 2: Convert to fraction form
    6,440.76/8,889.48 = 4,083.12/x
  3. Step 3: Cross multiply
    6,440.76x = 8,889.48 × 4,083.12
  4. Step 4: Simplify right side
    6,440.76x = 36,296,813.58
  5. Step 5: Solve for x
    x = 36,296,813.58/6,440.76
  6. Step 6: Final answer
    x = 5,635.49

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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.