Home / 5,311.45-7,329.09-2,953.14

Finding the Fourth Proportional to 5,311.45, 7,329.09 and 2,953.14

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Solution

The fourth proportional to 5,311.45, 7,329.09 and 2,953.14 is: 4,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.45 : 7,329.09 = 2,953.14 : x
  2. Step 2: Convert to fraction form
    5,311.45/7,329.09 = 2,953.14/x
  3. Step 3: Cross multiply
    5,311.45x = 7,329.09 × 2,953.14
  4. Step 4: Simplify right side
    5,311.45x = 21,643,828.84
  5. Step 5: Solve for x
    x = 21,643,828.84/5,311.45
  6. Step 6: Final answer
    x = 4,074.94

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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.