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Finding the Fourth Proportional to 5,374.60, 8,059.98 and 1,911.16

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Solution

The fourth proportional to 5,374.60, 8,059.98 and 1,911.16 is: 2,866.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.60 : 8,059.98 = 1,911.16 : x
  2. Step 2: Convert to fraction form
    5,374.60/8,059.98 = 1,911.16/x
  3. Step 3: Cross multiply
    5,374.60x = 8,059.98 × 1,911.16
  4. Step 4: Simplify right side
    5,374.60x = 15,403,911.38
  5. Step 5: Solve for x
    x = 15,403,911.38/5,374.60
  6. Step 6: Final answer
    x = 2,866.06

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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.