Home / 4,687.20-7,030.80-2,743.20

Finding the Fourth Proportional to 4,687.20, 7,030.80 and 2,743.20

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Solution

The fourth proportional to 4,687.20, 7,030.80 and 2,743.20 is: 4,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.20 : 7,030.80 = 2,743.20 : x
  2. Step 2: Convert to fraction form
    4,687.20/7,030.80 = 2,743.20/x
  3. Step 3: Cross multiply
    4,687.20x = 7,030.80 × 2,743.20
  4. Step 4: Simplify right side
    4,687.20x = 19,286,890.56
  5. Step 5: Solve for x
    x = 19,286,890.56/4,687.20
  6. Step 6: Final answer
    x = 4,114.80

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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.