Home / 5,220.85-7,207.55-3,551.17

Finding the Fourth Proportional to 5,220.85, 7,207.55 and 3,551.17

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Solution

The fourth proportional to 5,220.85, 7,207.55 and 3,551.17 is: 4,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.85 : 7,207.55 = 3,551.17 : x
  2. Step 2: Convert to fraction form
    5,220.85/7,207.55 = 3,551.17/x
  3. Step 3: Cross multiply
    5,220.85x = 7,207.55 × 3,551.17
  4. Step 4: Simplify right side
    5,220.85x = 25,595,235.33
  5. Step 5: Solve for x
    x = 25,595,235.33/5,220.85
  6. Step 6: Final answer
    x = 4,902.50

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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.