Home / 2,375.12-3,277.49-1,312.88

Finding the Fourth Proportional to 2,375.12, 3,277.49 and 1,312.88

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Solution

The fourth proportional to 2,375.12, 3,277.49 and 1,312.88 is: 1,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.12 : 3,277.49 = 1,312.88 : x
  2. Step 2: Convert to fraction form
    2,375.12/3,277.49 = 1,312.88/x
  3. Step 3: Cross multiply
    2,375.12x = 3,277.49 × 1,312.88
  4. Step 4: Simplify right side
    2,375.12x = 4,302,928.12
  5. Step 5: Solve for x
    x = 4,302,928.12/2,375.12
  6. Step 6: Final answer
    x = 1,811.67

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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.