Home / 6,309.63-8,707.32-3,620.70

Finding the Fourth Proportional to 6,309.63, 8,707.32 and 3,620.70

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Solution

The fourth proportional to 6,309.63, 8,707.32 and 3,620.70 is: 4,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.63 : 8,707.32 = 3,620.70 : x
  2. Step 2: Convert to fraction form
    6,309.63/8,707.32 = 3,620.70/x
  3. Step 3: Cross multiply
    6,309.63x = 8,707.32 × 3,620.70
  4. Step 4: Simplify right side
    6,309.63x = 31,526,593.52
  5. Step 5: Solve for x
    x = 31,526,593.52/6,309.63
  6. Step 6: Final answer
    x = 4,996.58

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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.