Home / 7,203.36-10,799.28-2,820

Finding the Fourth Proportional to 7,203.36, 10,799.28 and 2,820

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Solution

The fourth proportional to 7,203.36, 10,799.28 and 2,820 is: 4,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.36 : 10,799.28 = 2,820 : x
  2. Step 2: Convert to fraction form
    7,203.36/10,799.28 = 2,820/x
  3. Step 3: Cross multiply
    7,203.36x = 10,799.28 × 2,820
  4. Step 4: Simplify right side
    7,203.36x = 30,453,969.60
  5. Step 5: Solve for x
    x = 30,453,969.60/7,203.36
  6. Step 6: Final answer
    x = 4,227.75

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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.