Home / 5,728.23-7,904.97-3,490.11

Finding the Fourth Proportional to 5,728.23, 7,904.97 and 3,490.11

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Solution

The fourth proportional to 5,728.23, 7,904.97 and 3,490.11 is: 4,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.23 : 7,904.97 = 3,490.11 : x
  2. Step 2: Convert to fraction form
    5,728.23/7,904.97 = 3,490.11/x
  3. Step 3: Cross multiply
    5,728.23x = 7,904.97 × 3,490.11
  4. Step 4: Simplify right side
    5,728.23x = 27,589,214.85
  5. Step 5: Solve for x
    x = 27,589,214.85/5,728.23
  6. Step 6: Final answer
    x = 4,816.36

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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.