Home / 5,267-7,904.78-2,670.68

Finding the Fourth Proportional to 5,267, 7,904.78 and 2,670.68

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Solution

The fourth proportional to 5,267, 7,904.78 and 2,670.68 is: 4,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267 : 7,904.78 = 2,670.68 : x
  2. Step 2: Convert to fraction form
    5,267/7,904.78 = 2,670.68/x
  3. Step 3: Cross multiply
    5,267x = 7,904.78 × 2,670.68
  4. Step 4: Simplify right side
    5,267x = 21,111,137.85
  5. Step 5: Solve for x
    x = 21,111,137.85/5,267
  6. Step 6: Final answer
    x = 4,008.19

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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.