Home / 5,329.72-7,355.34-2,972.08

Finding the Fourth Proportional to 5,329.72, 7,355.34 and 2,972.08

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Solution

The fourth proportional to 5,329.72, 7,355.34 and 2,972.08 is: 4,101.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.72 : 7,355.34 = 2,972.08 : x
  2. Step 2: Convert to fraction form
    5,329.72/7,355.34 = 2,972.08/x
  3. Step 3: Cross multiply
    5,329.72x = 7,355.34 × 2,972.08
  4. Step 4: Simplify right side
    5,329.72x = 21,860,658.91
  5. Step 5: Solve for x
    x = 21,860,658.91/5,329.72
  6. Step 6: Final answer
    x = 4,101.65

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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.