Home / 5,501.20-7,588.20-3,638.80

Finding the Fourth Proportional to 5,501.20, 7,588.20 and 3,638.80

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Solution

The fourth proportional to 5,501.20, 7,588.20 and 3,638.80 is: 5,019.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,501.20 : 7,588.20 = 3,638.80 : x
  2. Step 2: Convert to fraction form
    5,501.20/7,588.20 = 3,638.80/x
  3. Step 3: Cross multiply
    5,501.20x = 7,588.20 × 3,638.80
  4. Step 4: Simplify right side
    5,501.20x = 27,611,942.16
  5. Step 5: Solve for x
    x = 27,611,942.16/5,501.20
  6. Step 6: Final answer
    x = 5,019.26

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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.