Home / 7,185.64-9,916.56-4,042.03

Finding the Fourth Proportional to 7,185.64, 9,916.56 and 4,042.03

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Solution

The fourth proportional to 7,185.64, 9,916.56 and 4,042.03 is: 5,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.64 : 9,916.56 = 4,042.03 : x
  2. Step 2: Convert to fraction form
    7,185.64/9,916.56 = 4,042.03/x
  3. Step 3: Cross multiply
    7,185.64x = 9,916.56 × 4,042.03
  4. Step 4: Simplify right side
    7,185.64x = 40,083,033.02
  5. Step 5: Solve for x
    x = 40,083,033.02/7,185.64
  6. Step 6: Final answer
    x = 5,578.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.