Home / 3,278.88-4,520.52-2,717.28

Finding the Fourth Proportional to 3,278.88, 4,520.52 and 2,717.28

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Solution

The fourth proportional to 3,278.88, 4,520.52 and 2,717.28 is: 3,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.88 : 4,520.52 = 2,717.28 : x
  2. Step 2: Convert to fraction form
    3,278.88/4,520.52 = 2,717.28/x
  3. Step 3: Cross multiply
    3,278.88x = 4,520.52 × 2,717.28
  4. Step 4: Simplify right side
    3,278.88x = 12,283,518.59
  5. Step 5: Solve for x
    x = 12,283,518.59/3,278.88
  6. Step 6: Final answer
    x = 3,746.25

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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.