Home / 2,947.75-4,416.13-2,123.98

Finding the Fourth Proportional to 2,947.75, 4,416.13 and 2,123.98

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Solution

The fourth proportional to 2,947.75, 4,416.13 and 2,123.98 is: 3,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.75 : 4,416.13 = 2,123.98 : x
  2. Step 2: Convert to fraction form
    2,947.75/4,416.13 = 2,123.98/x
  3. Step 3: Cross multiply
    2,947.75x = 4,416.13 × 2,123.98
  4. Step 4: Simplify right side
    2,947.75x = 9,379,771.80
  5. Step 5: Solve for x
    x = 9,379,771.80/2,947.75
  6. Step 6: Final answer
    x = 3,182.01

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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.