Home / 7,704.90-11,557.43-2,439.81

Finding the Fourth Proportional to 7,704.90, 11,557.43 and 2,439.81

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Solution

The fourth proportional to 7,704.90, 11,557.43 and 2,439.81 is: 3,659.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.90 : 11,557.43 = 2,439.81 : x
  2. Step 2: Convert to fraction form
    7,704.90/11,557.43 = 2,439.81/x
  3. Step 3: Cross multiply
    7,704.90x = 11,557.43 × 2,439.81
  4. Step 4: Simplify right side
    7,704.90x = 28,197,961.03
  5. Step 5: Solve for x
    x = 28,197,961.03/7,704.90
  6. Step 6: Final answer
    x = 3,659.74

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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.