Home / 2,021.45-3,032.18-615.88

Finding the Fourth Proportional to 2,021.45, 3,032.18 and 615.88

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Solution

The fourth proportional to 2,021.45, 3,032.18 and 615.88 is: 923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.45 : 3,032.18 = 615.88 : x
  2. Step 2: Convert to fraction form
    2,021.45/3,032.18 = 615.88/x
  3. Step 3: Cross multiply
    2,021.45x = 3,032.18 × 615.88
  4. Step 4: Simplify right side
    2,021.45x = 1,867,459.02
  5. Step 5: Solve for x
    x = 1,867,459.02/2,021.45
  6. Step 6: Final answer
    x = 923.82

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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.