Home / 1,027.21-1,541.60-402.61

Finding the Fourth Proportional to 1,027.21, 1,541.60 and 402.61

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Solution

The fourth proportional to 1,027.21, 1,541.60 and 402.61 is: 604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.21 : 1,541.60 = 402.61 : x
  2. Step 2: Convert to fraction form
    1,027.21/1,541.60 = 402.61/x
  3. Step 3: Cross multiply
    1,027.21x = 1,541.60 × 402.61
  4. Step 4: Simplify right side
    1,027.21x = 620,663.58
  5. Step 5: Solve for x
    x = 620,663.58/1,027.21
  6. Step 6: Final answer
    x = 604.22

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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.