Home / 3,988.48-5,504.04-2,220.24

Finding the Fourth Proportional to 3,988.48, 5,504.04 and 2,220.24

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Solution

The fourth proportional to 3,988.48, 5,504.04 and 2,220.24 is: 3,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.48 : 5,504.04 = 2,220.24 : x
  2. Step 2: Convert to fraction form
    3,988.48/5,504.04 = 2,220.24/x
  3. Step 3: Cross multiply
    3,988.48x = 5,504.04 × 2,220.24
  4. Step 4: Simplify right side
    3,988.48x = 12,220,289.77
  5. Step 5: Solve for x
    x = 12,220,289.77/3,988.48
  6. Step 6: Final answer
    x = 3,063.90

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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.