Home / 5,219.30-7,202.70-2,981.48

Finding the Fourth Proportional to 5,219.30, 7,202.70 and 2,981.48

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Solution

The fourth proportional to 5,219.30, 7,202.70 and 2,981.48 is: 4,114.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.30 : 7,202.70 = 2,981.48 : x
  2. Step 2: Convert to fraction form
    5,219.30/7,202.70 = 2,981.48/x
  3. Step 3: Cross multiply
    5,219.30x = 7,202.70 × 2,981.48
  4. Step 4: Simplify right side
    5,219.30x = 21,474,655.08
  5. Step 5: Solve for x
    x = 21,474,655.08/5,219.30
  6. Step 6: Final answer
    x = 4,114.47

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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.