Home / 5,191.84-7,778.40-2,849.32

Finding the Fourth Proportional to 5,191.84, 7,778.40 and 2,849.32

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Solution

The fourth proportional to 5,191.84, 7,778.40 and 2,849.32 is: 4,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.84 : 7,778.40 = 2,849.32 : x
  2. Step 2: Convert to fraction form
    5,191.84/7,778.40 = 2,849.32/x
  3. Step 3: Cross multiply
    5,191.84x = 7,778.40 × 2,849.32
  4. Step 4: Simplify right side
    5,191.84x = 22,163,150.69
  5. Step 5: Solve for x
    x = 22,163,150.69/5,191.84
  6. Step 6: Final answer
    x = 4,268.84

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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.