Home / 4,921.24-6,789.54-3,153.64

Finding the Fourth Proportional to 4,921.24, 6,789.54 and 3,153.64

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Solution

The fourth proportional to 4,921.24, 6,789.54 and 3,153.64 is: 4,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.24 : 6,789.54 = 3,153.64 : x
  2. Step 2: Convert to fraction form
    4,921.24/6,789.54 = 3,153.64/x
  3. Step 3: Cross multiply
    4,921.24x = 6,789.54 × 3,153.64
  4. Step 4: Simplify right side
    4,921.24x = 21,411,764.93
  5. Step 5: Solve for x
    x = 21,411,764.93/4,921.24
  6. Step 6: Final answer
    x = 4,350.89

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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.