Home / 6,319.43-8,720.10-3,666.33

Finding the Fourth Proportional to 6,319.43, 8,720.10 and 3,666.33

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Solution

The fourth proportional to 6,319.43, 8,720.10 and 3,666.33 is: 5,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.43 : 8,720.10 = 3,666.33 : x
  2. Step 2: Convert to fraction form
    6,319.43/8,720.10 = 3,666.33/x
  3. Step 3: Cross multiply
    6,319.43x = 8,720.10 × 3,666.33
  4. Step 4: Simplify right side
    6,319.43x = 31,970,764.23
  5. Step 5: Solve for x
    x = 31,970,764.23/6,319.43
  6. Step 6: Final answer
    x = 5,059.13

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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.