Home / 5,279.94-7,920.50-2,357.87

Finding the Fourth Proportional to 5,279.94, 7,920.50 and 2,357.87

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Solution

The fourth proportional to 5,279.94, 7,920.50 and 2,357.87 is: 3,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.94 : 7,920.50 = 2,357.87 : x
  2. Step 2: Convert to fraction form
    5,279.94/7,920.50 = 2,357.87/x
  3. Step 3: Cross multiply
    5,279.94x = 7,920.50 × 2,357.87
  4. Step 4: Simplify right side
    5,279.94x = 18,675,457.94
  5. Step 5: Solve for x
    x = 18,675,457.94/5,279.94
  6. Step 6: Final answer
    x = 3,537.06

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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.