Home / 5,124.78-7,072.32-3,028.92

Finding the Fourth Proportional to 5,124.78, 7,072.32 and 3,028.92

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Solution

The fourth proportional to 5,124.78, 7,072.32 and 3,028.92 is: 4,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.78 : 7,072.32 = 3,028.92 : x
  2. Step 2: Convert to fraction form
    5,124.78/7,072.32 = 3,028.92/x
  3. Step 3: Cross multiply
    5,124.78x = 7,072.32 × 3,028.92
  4. Step 4: Simplify right side
    5,124.78x = 21,421,491.49
  5. Step 5: Solve for x
    x = 21,421,491.49/5,124.78
  6. Step 6: Final answer
    x = 4,179.98

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1.5x scale

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.