Home / 2,376.30-3,279.31-1,328.37

Finding the Fourth Proportional to 2,376.30, 3,279.31 and 1,328.37

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Solution

The fourth proportional to 2,376.30, 3,279.31 and 1,328.37 is: 1,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.30 : 3,279.31 = 1,328.37 : x
  2. Step 2: Convert to fraction form
    2,376.30/3,279.31 = 1,328.37/x
  3. Step 3: Cross multiply
    2,376.30x = 3,279.31 × 1,328.37
  4. Step 4: Simplify right side
    2,376.30x = 4,356,121.41
  5. Step 5: Solve for x
    x = 4,356,121.41/2,376.30
  6. Step 6: Final answer
    x = 1,833.15

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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.