Home / 4,276.09-6,420.03-2,956.57

Finding the Fourth Proportional to 4,276.09, 6,420.03 and 2,956.57

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Solution

The fourth proportional to 4,276.09, 6,420.03 and 2,956.57 is: 4,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.09 : 6,420.03 = 2,956.57 : x
  2. Step 2: Convert to fraction form
    4,276.09/6,420.03 = 2,956.57/x
  3. Step 3: Cross multiply
    4,276.09x = 6,420.03 × 2,956.57
  4. Step 4: Simplify right side
    4,276.09x = 18,981,268.10
  5. Step 5: Solve for x
    x = 18,981,268.10/4,276.09
  6. Step 6: Final answer
    x = 4,438.93

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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.