Home / 5,651.84-8,480.28-2,189.36

Finding the Fourth Proportional to 5,651.84, 8,480.28 and 2,189.36

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Solution

The fourth proportional to 5,651.84, 8,480.28 and 2,189.36 is: 3,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.84 : 8,480.28 = 2,189.36 : x
  2. Step 2: Convert to fraction form
    5,651.84/8,480.28 = 2,189.36/x
  3. Step 3: Cross multiply
    5,651.84x = 8,480.28 × 2,189.36
  4. Step 4: Simplify right side
    5,651.84x = 18,566,385.82
  5. Step 5: Solve for x
    x = 18,566,385.82/5,651.84
  6. Step 6: Final answer
    x = 3,285.02

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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.