Home / 7,905.40-11,858.31-3,744.43

Finding the Fourth Proportional to 7,905.40, 11,858.31 and 3,744.43

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Solution

The fourth proportional to 7,905.40, 11,858.31 and 3,744.43 is: 5,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.40 : 11,858.31 = 3,744.43 : x
  2. Step 2: Convert to fraction form
    7,905.40/11,858.31 = 3,744.43/x
  3. Step 3: Cross multiply
    7,905.40x = 11,858.31 × 3,744.43
  4. Step 4: Simplify right side
    7,905.40x = 44,402,592.99
  5. Step 5: Solve for x
    x = 44,402,592.99/7,905.40
  6. Step 6: Final answer
    x = 5,616.74

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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.