Home / 3,729.12-5,143.20-2,548.32

Finding the Fourth Proportional to 3,729.12, 5,143.20 and 2,548.32

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Solution

The fourth proportional to 3,729.12, 5,143.20 and 2,548.32 is: 3,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.12 : 5,143.20 = 2,548.32 : x
  2. Step 2: Convert to fraction form
    3,729.12/5,143.20 = 2,548.32/x
  3. Step 3: Cross multiply
    3,729.12x = 5,143.20 × 2,548.32
  4. Step 4: Simplify right side
    3,729.12x = 13,106,519.42
  5. Step 5: Solve for x
    x = 13,106,519.42/3,729.12
  6. Step 6: Final answer
    x = 3,514.64

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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.