Home / 3,217.95-4,820.72-2,729.79

Finding the Fourth Proportional to 3,217.95, 4,820.72 and 2,729.79

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Solution

The fourth proportional to 3,217.95, 4,820.72 and 2,729.79 is: 4,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.95 : 4,820.72 = 2,729.79 : x
  2. Step 2: Convert to fraction form
    3,217.95/4,820.72 = 2,729.79/x
  3. Step 3: Cross multiply
    3,217.95x = 4,820.72 × 2,729.79
  4. Step 4: Simplify right side
    3,217.95x = 13,159,539.60
  5. Step 5: Solve for x
    x = 13,159,539.60/3,217.95
  6. Step 6: Final answer
    x = 4,089.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.