Home / 2,376.63-3,279.78-1,328.67

Finding the Fourth Proportional to 2,376.63, 3,279.78 and 1,328.67

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Solution

The fourth proportional to 2,376.63, 3,279.78 and 1,328.67 is: 1,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.63 : 3,279.78 = 1,328.67 : x
  2. Step 2: Convert to fraction form
    2,376.63/3,279.78 = 1,328.67/x
  3. Step 3: Cross multiply
    2,376.63x = 3,279.78 × 1,328.67
  4. Step 4: Simplify right side
    2,376.63x = 4,357,745.29
  5. Step 5: Solve for x
    x = 4,357,745.29/2,376.63
  6. Step 6: Final answer
    x = 1,833.58

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1.5x scale

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.