Home / 3,977.24-5,488.74-2,720.93

Finding the Fourth Proportional to 3,977.24, 5,488.74 and 2,720.93

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Solution

The fourth proportional to 3,977.24, 5,488.74 and 2,720.93 is: 3,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.24 : 5,488.74 = 2,720.93 : x
  2. Step 2: Convert to fraction form
    3,977.24/5,488.74 = 2,720.93/x
  3. Step 3: Cross multiply
    3,977.24x = 5,488.74 × 2,720.93
  4. Step 4: Simplify right side
    3,977.24x = 14,934,449.88
  5. Step 5: Solve for x
    x = 14,934,449.88/3,977.24
  6. Step 6: Final answer
    x = 3,754.98

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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.