Home / 5,374.46-8,061.78-1,911.62

Finding the Fourth Proportional to 5,374.46, 8,061.78 and 1,911.62

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Solution

The fourth proportional to 5,374.46, 8,061.78 and 1,911.62 is: 2,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.46 : 8,061.78 = 1,911.62 : x
  2. Step 2: Convert to fraction form
    5,374.46/8,061.78 = 1,911.62/x
  3. Step 3: Cross multiply
    5,374.46x = 8,061.78 × 1,911.62
  4. Step 4: Simplify right side
    5,374.46x = 15,411,059.88
  5. Step 5: Solve for x
    x = 15,411,059.88/5,374.46
  6. Step 6: Final answer
    x = 2,867.46

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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.