Home / 6,243.20-8,619.84-5,577.92

Finding the Fourth Proportional to 6,243.20, 8,619.84 and 5,577.92

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Solution

The fourth proportional to 6,243.20, 8,619.84 and 5,577.92 is: 7,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.20 : 8,619.84 = 5,577.92 : x
  2. Step 2: Convert to fraction form
    6,243.20/8,619.84 = 5,577.92/x
  3. Step 3: Cross multiply
    6,243.20x = 8,619.84 × 5,577.92
  4. Step 4: Simplify right side
    6,243.20x = 48,080,777.93
  5. Step 5: Solve for x
    x = 48,080,777.93/6,243.20
  6. Step 6: Final answer
    x = 7,701.30

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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.