Home / 2,920.21-4,381.13-1,622.59

Finding the Fourth Proportional to 2,920.21, 4,381.13 and 1,622.59

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Solution

The fourth proportional to 2,920.21, 4,381.13 and 1,622.59 is: 2,434.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.21 : 4,381.13 = 1,622.59 : x
  2. Step 2: Convert to fraction form
    2,920.21/4,381.13 = 1,622.59/x
  3. Step 3: Cross multiply
    2,920.21x = 4,381.13 × 1,622.59
  4. Step 4: Simplify right side
    2,920.21x = 7,108,777.73
  5. Step 5: Solve for x
    x = 7,108,777.73/2,920.21
  6. Step 6: Final answer
    x = 2,434.34

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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.