Home / 7,779.42-11,671.83-2,849.55

Finding the Fourth Proportional to 7,779.42, 11,671.83 and 2,849.55

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Solution

The fourth proportional to 7,779.42, 11,671.83 and 2,849.55 is: 4,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.42 : 11,671.83 = 2,849.55 : x
  2. Step 2: Convert to fraction form
    7,779.42/11,671.83 = 2,849.55/x
  3. Step 3: Cross multiply
    7,779.42x = 11,671.83 × 2,849.55
  4. Step 4: Simplify right side
    7,779.42x = 33,259,463.18
  5. Step 5: Solve for x
    x = 33,259,463.18/7,779.42
  6. Step 6: Final answer
    x = 4,275.31

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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.