Home / 5,085.94-7,021.77-3,904.66

Finding the Fourth Proportional to 5,085.94, 7,021.77 and 3,904.66

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Solution

The fourth proportional to 5,085.94, 7,021.77 and 3,904.66 is: 5,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.94 : 7,021.77 = 3,904.66 : x
  2. Step 2: Convert to fraction form
    5,085.94/7,021.77 = 3,904.66/x
  3. Step 3: Cross multiply
    5,085.94x = 7,021.77 × 3,904.66
  4. Step 4: Simplify right side
    5,085.94x = 27,417,624.45
  5. Step 5: Solve for x
    x = 27,417,624.45/5,085.94
  6. Step 6: Final answer
    x = 5,390.87

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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.