Home / 7,947.40-11,916.46-2,399.08

Finding the Fourth Proportional to 7,947.40, 11,916.46 and 2,399.08

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Solution

The fourth proportional to 7,947.40, 11,916.46 and 2,399.08 is: 3,597.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.40 : 11,916.46 = 2,399.08 : x
  2. Step 2: Convert to fraction form
    7,947.40/11,916.46 = 2,399.08/x
  3. Step 3: Cross multiply
    7,947.40x = 11,916.46 × 2,399.08
  4. Step 4: Simplify right side
    7,947.40x = 28,588,505.07
  5. Step 5: Solve for x
    x = 28,588,505.07/7,947.40
  6. Step 6: Final answer
    x = 3,597.22

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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.