Home / 3,719.99-5,125.14-2,877.80

Finding the Fourth Proportional to 3,719.99, 5,125.14 and 2,877.80

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Solution

The fourth proportional to 3,719.99, 5,125.14 and 2,877.80 is: 3,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.99 : 5,125.14 = 2,877.80 : x
  2. Step 2: Convert to fraction form
    3,719.99/5,125.14 = 2,877.80/x
  3. Step 3: Cross multiply
    3,719.99x = 5,125.14 × 2,877.80
  4. Step 4: Simplify right side
    3,719.99x = 14,749,102.27
  5. Step 5: Solve for x
    x = 14,749,102.27/3,719.99
  6. Step 6: Final answer
    x = 3,964.82

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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.