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Finding the Fourth Proportional to 5,329.32, 7,354.62 and 2,939.45

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Solution

The fourth proportional to 5,329.32, 7,354.62 and 2,939.45 is: 4,056.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.32 : 7,354.62 = 2,939.45 : x
  2. Step 2: Convert to fraction form
    5,329.32/7,354.62 = 2,939.45/x
  3. Step 3: Cross multiply
    5,329.32x = 7,354.62 × 2,939.45
  4. Step 4: Simplify right side
    5,329.32x = 21,618,500.99
  5. Step 5: Solve for x
    x = 21,618,500.99/5,329.32
  6. Step 6: Final answer
    x = 4,056.52

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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.