Home / 2,376.18-3,278.79-1,328.22

Finding the Fourth Proportional to 2,376.18, 3,278.79 and 1,328.22

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Solution

The fourth proportional to 2,376.18, 3,278.79 and 1,328.22 is: 1,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.18 : 3,278.79 = 1,328.22 : x
  2. Step 2: Convert to fraction form
    2,376.18/3,278.79 = 1,328.22/x
  3. Step 3: Cross multiply
    2,376.18x = 3,278.79 × 1,328.22
  4. Step 4: Simplify right side
    2,376.18x = 4,354,954.45
  5. Step 5: Solve for x
    x = 4,354,954.45/2,376.18
  6. Step 6: Final answer
    x = 1,832.75

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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.