Home / 6,319.86-8,720.94-3,630.53

Finding the Fourth Proportional to 6,319.86, 8,720.94 and 3,630.53

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Solution

The fourth proportional to 6,319.86, 8,720.94 and 3,630.53 is: 5,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.86 : 8,720.94 = 3,630.53 : x
  2. Step 2: Convert to fraction form
    6,319.86/8,720.94 = 3,630.53/x
  3. Step 3: Cross multiply
    6,319.86x = 8,720.94 × 3,630.53
  4. Step 4: Simplify right side
    6,319.86x = 31,661,634.30
  5. Step 5: Solve for x
    x = 31,661,634.30/6,319.86
  6. Step 6: Final answer
    x = 5,009.86

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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.