Home / 2,376.25-3,279.30-1,328.32

Finding the Fourth Proportional to 2,376.25, 3,279.30 and 1,328.32

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Solution

The fourth proportional to 2,376.25, 3,279.30 and 1,328.32 is: 1,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.25 : 3,279.30 = 1,328.32 : x
  2. Step 2: Convert to fraction form
    2,376.25/3,279.30 = 1,328.32/x
  3. Step 3: Cross multiply
    2,376.25x = 3,279.30 × 1,328.32
  4. Step 4: Simplify right side
    2,376.25x = 4,355,936.74
  5. Step 5: Solve for x
    x = 4,355,936.74/2,376.25
  6. Step 6: Final answer
    x = 1,833.11

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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.