Home / 3,931.98-5,900.85-1,984.32

Finding the Fourth Proportional to 3,931.98, 5,900.85 and 1,984.32

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Solution

The fourth proportional to 3,931.98, 5,900.85 and 1,984.32 is: 2,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.98 : 5,900.85 = 1,984.32 : x
  2. Step 2: Convert to fraction form
    3,931.98/5,900.85 = 1,984.32/x
  3. Step 3: Cross multiply
    3,931.98x = 5,900.85 × 1,984.32
  4. Step 4: Simplify right side
    3,931.98x = 11,709,174.67
  5. Step 5: Solve for x
    x = 11,709,174.67/3,931.98
  6. Step 6: Final answer
    x = 2,977.93

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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.