Home / 7,451.28-11,171.40-3,558.42

Finding the Fourth Proportional to 7,451.28, 11,171.40 and 3,558.42

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Solution

The fourth proportional to 7,451.28, 11,171.40 and 3,558.42 is: 5,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.28 : 11,171.40 = 3,558.42 : x
  2. Step 2: Convert to fraction form
    7,451.28/11,171.40 = 3,558.42/x
  3. Step 3: Cross multiply
    7,451.28x = 11,171.40 × 3,558.42
  4. Step 4: Simplify right side
    7,451.28x = 39,752,533.19
  5. Step 5: Solve for x
    x = 39,752,533.19/7,451.28
  6. Step 6: Final answer
    x = 5,334.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.