Home / 5,777.30-7,971.09-3,679.70

Finding the Fourth Proportional to 5,777.30, 7,971.09 and 3,679.70

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Solution

The fourth proportional to 5,777.30, 7,971.09 and 3,679.70 is: 5,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.30 : 7,971.09 = 3,679.70 : x
  2. Step 2: Convert to fraction form
    5,777.30/7,971.09 = 3,679.70/x
  3. Step 3: Cross multiply
    5,777.30x = 7,971.09 × 3,679.70
  4. Step 4: Simplify right side
    5,777.30x = 29,331,219.87
  5. Step 5: Solve for x
    x = 29,331,219.87/5,777.30
  6. Step 6: Final answer
    x = 5,076.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.