Home / 4,974.88-6,864.67-3,085.78

Finding the Fourth Proportional to 4,974.88, 6,864.67 and 3,085.78

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Solution

The fourth proportional to 4,974.88, 6,864.67 and 3,085.78 is: 4,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.88 : 6,864.67 = 3,085.78 : x
  2. Step 2: Convert to fraction form
    4,974.88/6,864.67 = 3,085.78/x
  3. Step 3: Cross multiply
    4,974.88x = 6,864.67 × 3,085.78
  4. Step 4: Simplify right side
    4,974.88x = 21,182,861.39
  5. Step 5: Solve for x
    x = 21,182,861.39/4,974.88
  6. Step 6: Final answer
    x = 4,257.96

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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.