Home / 5,549.96-7,655.42-4,220.75

Finding the Fourth Proportional to 5,549.96, 7,655.42 and 4,220.75

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Solution

The fourth proportional to 5,549.96, 7,655.42 and 4,220.75 is: 5,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.96 : 7,655.42 = 4,220.75 : x
  2. Step 2: Convert to fraction form
    5,549.96/7,655.42 = 4,220.75/x
  3. Step 3: Cross multiply
    5,549.96x = 7,655.42 × 4,220.75
  4. Step 4: Simplify right side
    5,549.96x = 32,311,554.58
  5. Step 5: Solve for x
    x = 32,311,554.58/5,549.96
  6. Step 6: Final answer
    x = 5,821.95

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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.