Home / 1,402.06-2,103.33-427.94

Finding the Fourth Proportional to 1,402.06, 2,103.33 and 427.94

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Solution

The fourth proportional to 1,402.06, 2,103.33 and 427.94 is: 641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.06 : 2,103.33 = 427.94 : x
  2. Step 2: Convert to fraction form
    1,402.06/2,103.33 = 427.94/x
  3. Step 3: Cross multiply
    1,402.06x = 2,103.33 × 427.94
  4. Step 4: Simplify right side
    1,402.06x = 900,099.04
  5. Step 5: Solve for x
    x = 900,099.04/1,402.06
  6. Step 6: Final answer
    x = 641.98

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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.