Home / 5,187.54-7,782.55-1,489.69

Finding the Fourth Proportional to 5,187.54, 7,782.55 and 1,489.69

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Solution

The fourth proportional to 5,187.54, 7,782.55 and 1,489.69 is: 2,234.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.54 : 7,782.55 = 1,489.69 : x
  2. Step 2: Convert to fraction form
    5,187.54/7,782.55 = 1,489.69/x
  3. Step 3: Cross multiply
    5,187.54x = 7,782.55 × 1,489.69
  4. Step 4: Simplify right side
    5,187.54x = 11,593,592.91
  5. Step 5: Solve for x
    x = 11,593,592.91/5,187.54
  6. Step 6: Final answer
    x = 2,234.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.