Home / 7,179.36-9,905.76-4,193.44

Finding the Fourth Proportional to 7,179.36, 9,905.76 and 4,193.44

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Solution

The fourth proportional to 7,179.36, 9,905.76 and 4,193.44 is: 5,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.36 : 9,905.76 = 4,193.44 : x
  2. Step 2: Convert to fraction form
    7,179.36/9,905.76 = 4,193.44/x
  3. Step 3: Cross multiply
    7,179.36x = 9,905.76 × 4,193.44
  4. Step 4: Simplify right side
    7,179.36x = 41,539,210.21
  5. Step 5: Solve for x
    x = 41,539,210.21/7,179.36
  6. Step 6: Final answer
    x = 5,785.92

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1.5x scale

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.