Home / 4,792.20-7,189.45-1,505.28

Finding the Fourth Proportional to 4,792.20, 7,189.45 and 1,505.28

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Solution

The fourth proportional to 4,792.20, 7,189.45 and 1,505.28 is: 2,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,792.20 : 7,189.45 = 1,505.28 : x
  2. Step 2: Convert to fraction form
    4,792.20/7,189.45 = 1,505.28/x
  3. Step 3: Cross multiply
    4,792.20x = 7,189.45 × 1,505.28
  4. Step 4: Simplify right side
    4,792.20x = 10,822,158.49
  5. Step 5: Solve for x
    x = 10,822,158.49/4,792.20
  6. Step 6: Final answer
    x = 2,258.29

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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.