Home / 5,279.36-7,285.44-3,184.64

Finding the Fourth Proportional to 5,279.36, 7,285.44 and 3,184.64

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Solution

The fourth proportional to 5,279.36, 7,285.44 and 3,184.64 is: 4,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.36 : 7,285.44 = 3,184.64 : x
  2. Step 2: Convert to fraction form
    5,279.36/7,285.44 = 3,184.64/x
  3. Step 3: Cross multiply
    5,279.36x = 7,285.44 × 3,184.64
  4. Step 4: Simplify right side
    5,279.36x = 23,201,503.64
  5. Step 5: Solve for x
    x = 23,201,503.64/5,279.36
  6. Step 6: Final answer
    x = 4,394.76

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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.