Home / 5,436.90-7,502.94-3,079.20

Finding the Fourth Proportional to 5,436.90, 7,502.94 and 3,079.20

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Solution

The fourth proportional to 5,436.90, 7,502.94 and 3,079.20 is: 4,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.90 : 7,502.94 = 3,079.20 : x
  2. Step 2: Convert to fraction form
    5,436.90/7,502.94 = 3,079.20/x
  3. Step 3: Cross multiply
    5,436.90x = 7,502.94 × 3,079.20
  4. Step 4: Simplify right side
    5,436.90x = 23,103,052.85
  5. Step 5: Solve for x
    x = 23,103,052.85/5,436.90
  6. Step 6: Final answer
    x = 4,249.31

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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.