Home / 6,238.56-8,615.28-3,881.76

Finding the Fourth Proportional to 6,238.56, 8,615.28 and 3,881.76

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Solution

The fourth proportional to 6,238.56, 8,615.28 and 3,881.76 is: 5,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.56 : 8,615.28 = 3,881.76 : x
  2. Step 2: Convert to fraction form
    6,238.56/8,615.28 = 3,881.76/x
  3. Step 3: Cross multiply
    6,238.56x = 8,615.28 × 3,881.76
  4. Step 4: Simplify right side
    6,238.56x = 33,442,449.29
  5. Step 5: Solve for x
    x = 33,442,449.29/6,238.56
  6. Step 6: Final answer
    x = 5,360.60

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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.