Home / 5,767.40-8,648.37-2,991.30

Finding the Fourth Proportional to 5,767.40, 8,648.37 and 2,991.30

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Solution

The fourth proportional to 5,767.40, 8,648.37 and 2,991.30 is: 4,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,767.40 : 8,648.37 = 2,991.30 : x
  2. Step 2: Convert to fraction form
    5,767.40/8,648.37 = 2,991.30/x
  3. Step 3: Cross multiply
    5,767.40x = 8,648.37 × 2,991.30
  4. Step 4: Simplify right side
    5,767.40x = 25,869,836.75
  5. Step 5: Solve for x
    x = 25,869,836.75/5,767.40
  6. Step 6: Final answer
    x = 4,485.53

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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.