Home / 5,549.90-8,320.80-2,261.30

Finding the Fourth Proportional to 5,549.90, 8,320.80 and 2,261.30

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Solution

The fourth proportional to 5,549.90, 8,320.80 and 2,261.30 is: 3,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.90 : 8,320.80 = 2,261.30 : x
  2. Step 2: Convert to fraction form
    5,549.90/8,320.80 = 2,261.30/x
  3. Step 3: Cross multiply
    5,549.90x = 8,320.80 × 2,261.30
  4. Step 4: Simplify right side
    5,549.90x = 18,815,825.04
  5. Step 5: Solve for x
    x = 18,815,825.04/5,549.90
  6. Step 6: Final answer
    x = 3,390.30

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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.