Home / 4,018.79-5,542.81-3,072.20

Finding the Fourth Proportional to 4,018.79, 5,542.81 and 3,072.20

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Solution

The fourth proportional to 4,018.79, 5,542.81 and 3,072.20 is: 4,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,018.79 : 5,542.81 = 3,072.20 : x
  2. Step 2: Convert to fraction form
    4,018.79/5,542.81 = 3,072.20/x
  3. Step 3: Cross multiply
    4,018.79x = 5,542.81 × 3,072.20
  4. Step 4: Simplify right side
    4,018.79x = 17,028,605.52
  5. Step 5: Solve for x
    x = 17,028,605.52/4,018.79
  6. Step 6: Final answer
    x = 4,237.25

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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.