Home / 2,605.20-3,905.10-1,433.40

Finding the Fourth Proportional to 2,605.20, 3,905.10 and 1,433.40

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Solution

The fourth proportional to 2,605.20, 3,905.10 and 1,433.40 is: 2,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.20 : 3,905.10 = 1,433.40 : x
  2. Step 2: Convert to fraction form
    2,605.20/3,905.10 = 1,433.40/x
  3. Step 3: Cross multiply
    2,605.20x = 3,905.10 × 1,433.40
  4. Step 4: Simplify right side
    2,605.20x = 5,597,570.34
  5. Step 5: Solve for x
    x = 5,597,570.34/2,605.20
  6. Step 6: Final answer
    x = 2,148.61

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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.