Home / 5,249.36-7,242.62-3,123.11

Finding the Fourth Proportional to 5,249.36, 7,242.62 and 3,123.11

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Solution

The fourth proportional to 5,249.36, 7,242.62 and 3,123.11 is: 4,309.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.36 : 7,242.62 = 3,123.11 : x
  2. Step 2: Convert to fraction form
    5,249.36/7,242.62 = 3,123.11/x
  3. Step 3: Cross multiply
    5,249.36x = 7,242.62 × 3,123.11
  4. Step 4: Simplify right side
    5,249.36x = 22,619,501.44
  5. Step 5: Solve for x
    x = 22,619,501.44/5,249.36
  6. Step 6: Final answer
    x = 4,309.00

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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.