Home / 7,729.72-11,595.48-2,801.68

Finding the Fourth Proportional to 7,729.72, 11,595.48 and 2,801.68

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Solution

The fourth proportional to 7,729.72, 11,595.48 and 2,801.68 is: 4,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.72 : 11,595.48 = 2,801.68 : x
  2. Step 2: Convert to fraction form
    7,729.72/11,595.48 = 2,801.68/x
  3. Step 3: Cross multiply
    7,729.72x = 11,595.48 × 2,801.68
  4. Step 4: Simplify right side
    7,729.72x = 32,486,824.41
  5. Step 5: Solve for x
    x = 32,486,824.41/7,729.72
  6. Step 6: Final answer
    x = 4,202.85

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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.