Home / 6,520.64-8,998.29-3,687.80

Finding the Fourth Proportional to 6,520.64, 8,998.29 and 3,687.80

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Solution

The fourth proportional to 6,520.64, 8,998.29 and 3,687.80 is: 5,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.64 : 8,998.29 = 3,687.80 : x
  2. Step 2: Convert to fraction form
    6,520.64/8,998.29 = 3,687.80/x
  3. Step 3: Cross multiply
    6,520.64x = 8,998.29 × 3,687.80
  4. Step 4: Simplify right side
    6,520.64x = 33,183,848.87
  5. Step 5: Solve for x
    x = 33,183,848.87/6,520.64
  6. Step 6: Final answer
    x = 5,089.05

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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.