Home / 7,940.64-10,962.36-4,959.12

Finding the Fourth Proportional to 7,940.64, 10,962.36 and 4,959.12

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Solution

The fourth proportional to 7,940.64, 10,962.36 and 4,959.12 is: 6,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.64 : 10,962.36 = 4,959.12 : x
  2. Step 2: Convert to fraction form
    7,940.64/10,962.36 = 4,959.12/x
  3. Step 3: Cross multiply
    7,940.64x = 10,962.36 × 4,959.12
  4. Step 4: Simplify right side
    7,940.64x = 54,363,658.72
  5. Step 5: Solve for x
    x = 54,363,658.72/7,940.64
  6. Step 6: Final answer
    x = 6,846.26

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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.