Home / 5,327.85-7,991.76-1,431.93

Finding the Fourth Proportional to 5,327.85, 7,991.76 and 1,431.93

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Solution

The fourth proportional to 5,327.85, 7,991.76 and 1,431.93 is: 2,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327.85 : 7,991.76 = 1,431.93 : x
  2. Step 2: Convert to fraction form
    5,327.85/7,991.76 = 1,431.93/x
  3. Step 3: Cross multiply
    5,327.85x = 7,991.76 × 1,431.93
  4. Step 4: Simplify right side
    5,327.85x = 11,443,640.90
  5. Step 5: Solve for x
    x = 11,443,640.90/5,327.85
  6. Step 6: Final answer
    x = 2,147.89

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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.