Home / 6,243.52-8,615.60-3,449.20

Finding the Fourth Proportional to 6,243.52, 8,615.60 and 3,449.20

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Solution

The fourth proportional to 6,243.52, 8,615.60 and 3,449.20 is: 4,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.52 : 8,615.60 = 3,449.20 : x
  2. Step 2: Convert to fraction form
    6,243.52/8,615.60 = 3,449.20/x
  3. Step 3: Cross multiply
    6,243.52x = 8,615.60 × 3,449.20
  4. Step 4: Simplify right side
    6,243.52x = 29,716,927.52
  5. Step 5: Solve for x
    x = 29,716,927.52/6,243.52
  6. Step 6: Final answer
    x = 4,759.64

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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.