Home / 3,931-5,899.20-1,622.50

Finding the Fourth Proportional to 3,931, 5,899.20 and 1,622.50

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Solution

The fourth proportional to 3,931, 5,899.20 and 1,622.50 is: 2,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931 : 5,899.20 = 1,622.50 : x
  2. Step 2: Convert to fraction form
    3,931/5,899.20 = 1,622.50/x
  3. Step 3: Cross multiply
    3,931x = 5,899.20 × 1,622.50
  4. Step 4: Simplify right side
    3,931x = 9,571,452
  5. Step 5: Solve for x
    x = 9,571,452/3,931
  6. Step 6: Final answer
    x = 2,434.86

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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.