Home / 5,399.04-7,440.24-3,904.32

Finding the Fourth Proportional to 5,399.04, 7,440.24 and 3,904.32

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Solution

The fourth proportional to 5,399.04, 7,440.24 and 3,904.32 is: 5,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.04 : 7,440.24 = 3,904.32 : x
  2. Step 2: Convert to fraction form
    5,399.04/7,440.24 = 3,904.32/x
  3. Step 3: Cross multiply
    5,399.04x = 7,440.24 × 3,904.32
  4. Step 4: Simplify right side
    5,399.04x = 29,049,077.84
  5. Step 5: Solve for x
    x = 29,049,077.84/5,399.04
  6. Step 6: Final answer
    x = 5,380.42

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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.