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Finding the Fourth Proportional to 6,520.79, 8,998.63 and 3,536.55

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Solution

The fourth proportional to 6,520.79, 8,998.63 and 3,536.55 is: 4,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.79 : 8,998.63 = 3,536.55 : x
  2. Step 2: Convert to fraction form
    6,520.79/8,998.63 = 3,536.55/x
  3. Step 3: Cross multiply
    6,520.79x = 8,998.63 × 3,536.55
  4. Step 4: Simplify right side
    6,520.79x = 31,824,096.09
  5. Step 5: Solve for x
    x = 31,824,096.09/6,520.79
  6. Step 6: Final answer
    x = 4,880.40

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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.