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Finding the Fourth Proportional to 3,514.80, 4,852.80 and 3,218.88

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Solution

The fourth proportional to 3,514.80, 4,852.80 and 3,218.88 is: 4,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,514.80 : 4,852.80 = 3,218.88 : x
  2. Step 2: Convert to fraction form
    3,514.80/4,852.80 = 3,218.88/x
  3. Step 3: Cross multiply
    3,514.80x = 4,852.80 × 3,218.88
  4. Step 4: Simplify right side
    3,514.80x = 15,620,580.86
  5. Step 5: Solve for x
    x = 15,620,580.86/3,514.80
  6. Step 6: Final answer
    x = 4,444.23

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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.