Home / 5,270.21-7,905.17-1,374.62

Finding the Fourth Proportional to 5,270.21, 7,905.17 and 1,374.62

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Solution

The fourth proportional to 5,270.21, 7,905.17 and 1,374.62 is: 2,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.21 : 7,905.17 = 1,374.62 : x
  2. Step 2: Convert to fraction form
    5,270.21/7,905.17 = 1,374.62/x
  3. Step 3: Cross multiply
    5,270.21x = 7,905.17 × 1,374.62
  4. Step 4: Simplify right side
    5,270.21x = 10,866,609.30
  5. Step 5: Solve for x
    x = 10,866,609.30/5,270.21
  6. Step 6: Final answer
    x = 2,061.89

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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.