Home / 6,440.96-8,887.44-3,608.12

Finding the Fourth Proportional to 6,440.96, 8,887.44 and 3,608.12

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Solution

The fourth proportional to 6,440.96, 8,887.44 and 3,608.12 is: 4,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.96 : 8,887.44 = 3,608.12 : x
  2. Step 2: Convert to fraction form
    6,440.96/8,887.44 = 3,608.12/x
  3. Step 3: Cross multiply
    6,440.96x = 8,887.44 × 3,608.12
  4. Step 4: Simplify right side
    6,440.96x = 32,066,950.01
  5. Step 5: Solve for x
    x = 32,066,950.01/6,440.96
  6. Step 6: Final answer
    x = 4,978.60

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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.