Home / 3,988.04-5,503.50-2,220.07

Finding the Fourth Proportional to 3,988.04, 5,503.50 and 2,220.07

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Solution

The fourth proportional to 3,988.04, 5,503.50 and 2,220.07 is: 3,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.04 : 5,503.50 = 2,220.07 : x
  2. Step 2: Convert to fraction form
    3,988.04/5,503.50 = 2,220.07/x
  3. Step 3: Cross multiply
    3,988.04x = 5,503.50 × 2,220.07
  4. Step 4: Simplify right side
    3,988.04x = 12,218,141.49
  5. Step 5: Solve for x
    x = 12,218,141.49/3,988.04
  6. Step 6: Final answer
    x = 3,063.69

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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.