Home / 4,250.55-6,376.74-1,288.75

Finding the Fourth Proportional to 4,250.55, 6,376.74 and 1,288.75

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Solution

The fourth proportional to 4,250.55, 6,376.74 and 1,288.75 is: 1,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,250.55 : 6,376.74 = 1,288.75 : x
  2. Step 2: Convert to fraction form
    4,250.55/6,376.74 = 1,288.75/x
  3. Step 3: Cross multiply
    4,250.55x = 6,376.74 × 1,288.75
  4. Step 4: Simplify right side
    4,250.55x = 8,218,023.68
  5. Step 5: Solve for x
    x = 8,218,023.68/4,250.55
  6. Step 6: Final answer
    x = 1,933.40

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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.