Home / 7,279.94-10,918.85-3,581.18

Finding the Fourth Proportional to 7,279.94, 10,918.85 and 3,581.18

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Solution

The fourth proportional to 7,279.94, 10,918.85 and 3,581.18 is: 5,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.94 : 10,918.85 = 3,581.18 : x
  2. Step 2: Convert to fraction form
    7,279.94/10,918.85 = 3,581.18/x
  3. Step 3: Cross multiply
    7,279.94x = 10,918.85 × 3,581.18
  4. Step 4: Simplify right side
    7,279.94x = 39,102,294.74
  5. Step 5: Solve for x
    x = 39,102,294.74/7,279.94
  6. Step 6: Final answer
    x = 5,371.24

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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.