Home / 4,272.48-5,886.88-2,872.80

Finding the Fourth Proportional to 4,272.48, 5,886.88 and 2,872.80

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Solution

The fourth proportional to 4,272.48, 5,886.88 and 2,872.80 is: 3,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.48 : 5,886.88 = 2,872.80 : x
  2. Step 2: Convert to fraction form
    4,272.48/5,886.88 = 2,872.80/x
  3. Step 3: Cross multiply
    4,272.48x = 5,886.88 × 2,872.80
  4. Step 4: Simplify right side
    4,272.48x = 16,911,828.86
  5. Step 5: Solve for x
    x = 16,911,828.86/4,272.48
  6. Step 6: Final answer
    x = 3,958.32

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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.