Home / 2,376.08-3,278.70-1,328

Finding the Fourth Proportional to 2,376.08, 3,278.70 and 1,328

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Solution

The fourth proportional to 2,376.08, 3,278.70 and 1,328 is: 1,832.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.08 : 3,278.70 = 1,328 : x
  2. Step 2: Convert to fraction form
    2,376.08/3,278.70 = 1,328/x
  3. Step 3: Cross multiply
    2,376.08x = 3,278.70 × 1,328
  4. Step 4: Simplify right side
    2,376.08x = 4,354,113.60
  5. Step 5: Solve for x
    x = 4,354,113.60/2,376.08
  6. Step 6: Final answer
    x = 1,832.48

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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.