Home / 5,307.20-7,323.72-2,949.20

Finding the Fourth Proportional to 5,307.20, 7,323.72 and 2,949.20

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Solution

The fourth proportional to 5,307.20, 7,323.72 and 2,949.20 is: 4,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.20 : 7,323.72 = 2,949.20 : x
  2. Step 2: Convert to fraction form
    5,307.20/7,323.72 = 2,949.20/x
  3. Step 3: Cross multiply
    5,307.20x = 7,323.72 × 2,949.20
  4. Step 4: Simplify right side
    5,307.20x = 21,599,115.02
  5. Step 5: Solve for x
    x = 21,599,115.02/5,307.20
  6. Step 6: Final answer
    x = 4,069.78

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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.