Home / 5,476.62-8,220.10-3,390.30

Finding the Fourth Proportional to 5,476.62, 8,220.10 and 3,390.30

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Solution

The fourth proportional to 5,476.62, 8,220.10 and 3,390.30 is: 5,088.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.62 : 8,220.10 = 3,390.30 : x
  2. Step 2: Convert to fraction form
    5,476.62/8,220.10 = 3,390.30/x
  3. Step 3: Cross multiply
    5,476.62x = 8,220.10 × 3,390.30
  4. Step 4: Simplify right side
    5,476.62x = 27,868,605.03
  5. Step 5: Solve for x
    x = 27,868,605.03/5,476.62
  6. Step 6: Final answer
    x = 5,088.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.