Home / 7,280.12-10,921.74-2,663

Finding the Fourth Proportional to 7,280.12, 10,921.74 and 2,663

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Solution

The fourth proportional to 7,280.12, 10,921.74 and 2,663 is: 3,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.12 : 10,921.74 = 2,663 : x
  2. Step 2: Convert to fraction form
    7,280.12/10,921.74 = 2,663/x
  3. Step 3: Cross multiply
    7,280.12x = 10,921.74 × 2,663
  4. Step 4: Simplify right side
    7,280.12x = 29,084,593.62
  5. Step 5: Solve for x
    x = 29,084,593.62/7,280.12
  6. Step 6: Final answer
    x = 3,995.07

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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.