Home / 5,273.91-7,278.75-3,285.09

Finding the Fourth Proportional to 5,273.91, 7,278.75 and 3,285.09

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Solution

The fourth proportional to 5,273.91, 7,278.75 and 3,285.09 is: 4,533.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.91 : 7,278.75 = 3,285.09 : x
  2. Step 2: Convert to fraction form
    5,273.91/7,278.75 = 3,285.09/x
  3. Step 3: Cross multiply
    5,273.91x = 7,278.75 × 3,285.09
  4. Step 4: Simplify right side
    5,273.91x = 23,911,348.84
  5. Step 5: Solve for x
    x = 23,911,348.84/5,273.91
  6. Step 6: Final answer
    x = 4,533.89

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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.