Home / 4,758.28-7,130.92-2,679.28

Finding the Fourth Proportional to 4,758.28, 7,130.92 and 2,679.28

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Solution

The fourth proportional to 4,758.28, 7,130.92 and 2,679.28 is: 4,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.28 : 7,130.92 = 2,679.28 : x
  2. Step 2: Convert to fraction form
    4,758.28/7,130.92 = 2,679.28/x
  3. Step 3: Cross multiply
    4,758.28x = 7,130.92 × 2,679.28
  4. Step 4: Simplify right side
    4,758.28x = 19,105,731.34
  5. Step 5: Solve for x
    x = 19,105,731.34/4,758.28
  6. Step 6: Final answer
    x = 4,015.26

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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.