Home / 4,743.78-7,115.70-2,146.14

Finding the Fourth Proportional to 4,743.78, 7,115.70 and 2,146.14

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Solution

The fourth proportional to 4,743.78, 7,115.70 and 2,146.14 is: 3,219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.78 : 7,115.70 = 2,146.14 : x
  2. Step 2: Convert to fraction form
    4,743.78/7,115.70 = 2,146.14/x
  3. Step 3: Cross multiply
    4,743.78x = 7,115.70 × 2,146.14
  4. Step 4: Simplify right side
    4,743.78x = 15,271,288.40
  5. Step 5: Solve for x
    x = 15,271,288.40/4,743.78
  6. Step 6: Final answer
    x = 3,219.22

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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.