Home / 5,561.36-7,671.04-3,321.50

Finding the Fourth Proportional to 5,561.36, 7,671.04 and 3,321.50

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Solution

The fourth proportional to 5,561.36, 7,671.04 and 3,321.50 is: 4,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.36 : 7,671.04 = 3,321.50 : x
  2. Step 2: Convert to fraction form
    5,561.36/7,671.04 = 3,321.50/x
  3. Step 3: Cross multiply
    5,561.36x = 7,671.04 × 3,321.50
  4. Step 4: Simplify right side
    5,561.36x = 25,479,359.36
  5. Step 5: Solve for x
    x = 25,479,359.36/5,561.36
  6. Step 6: Final answer
    x = 4,581.50

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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.