Home / 6,319.03-8,720.70-3,630.68

Finding the Fourth Proportional to 6,319.03, 8,720.70 and 3,630.68

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Solution

The fourth proportional to 6,319.03, 8,720.70 and 3,630.68 is: 5,010.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.03 : 8,720.70 = 3,630.68 : x
  2. Step 2: Convert to fraction form
    6,319.03/8,720.70 = 3,630.68/x
  3. Step 3: Cross multiply
    6,319.03x = 8,720.70 × 3,630.68
  4. Step 4: Simplify right side
    6,319.03x = 31,662,071.09
  5. Step 5: Solve for x
    x = 31,662,071.09/6,319.03
  6. Step 6: Final answer
    x = 5,010.59

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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.