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Finding the Fourth Proportional to 6,590.96, 9,880.60 and 2,489.84

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Solution

The fourth proportional to 6,590.96, 9,880.60 and 2,489.84 is: 3,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,590.96 : 9,880.60 = 2,489.84 : x
  2. Step 2: Convert to fraction form
    6,590.96/9,880.60 = 2,489.84/x
  3. Step 3: Cross multiply
    6,590.96x = 9,880.60 × 2,489.84
  4. Step 4: Simplify right side
    6,590.96x = 24,601,113.10
  5. Step 5: Solve for x
    x = 24,601,113.10/6,590.96
  6. Step 6: Final answer
    x = 3,732.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.