Home / 2,376.20-3,278.98-1,328.06

Finding the Fourth Proportional to 2,376.20, 3,278.98 and 1,328.06

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Solution

The fourth proportional to 2,376.20, 3,278.98 and 1,328.06 is: 1,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.20 : 3,278.98 = 1,328.06 : x
  2. Step 2: Convert to fraction form
    2,376.20/3,278.98 = 1,328.06/x
  3. Step 3: Cross multiply
    2,376.20x = 3,278.98 × 1,328.06
  4. Step 4: Simplify right side
    2,376.20x = 4,354,692.04
  5. Step 5: Solve for x
    x = 4,354,692.04/2,376.20
  6. Step 6: Final answer
    x = 1,832.63

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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.