Home / 7,278.70-10,918.04-3,582.66

Finding the Fourth Proportional to 7,278.70, 10,918.04 and 3,582.66

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Solution

The fourth proportional to 7,278.70, 10,918.04 and 3,582.66 is: 5,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.70 : 10,918.04 = 3,582.66 : x
  2. Step 2: Convert to fraction form
    7,278.70/10,918.04 = 3,582.66/x
  3. Step 3: Cross multiply
    7,278.70x = 10,918.04 × 3,582.66
  4. Step 4: Simplify right side
    7,278.70x = 39,115,625.19
  5. Step 5: Solve for x
    x = 39,115,625.19/7,278.70
  6. Step 6: Final answer
    x = 5,373.99

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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.