Home / 5,686.15-8,518.83-4,122.28

Finding the Fourth Proportional to 5,686.15, 8,518.83 and 4,122.28

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Solution

The fourth proportional to 5,686.15, 8,518.83 and 4,122.28 is: 6,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.15 : 8,518.83 = 4,122.28 : x
  2. Step 2: Convert to fraction form
    5,686.15/8,518.83 = 4,122.28/x
  3. Step 3: Cross multiply
    5,686.15x = 8,518.83 × 4,122.28
  4. Step 4: Simplify right side
    5,686.15x = 35,116,991.54
  5. Step 5: Solve for x
    x = 35,116,991.54/5,686.15
  6. Step 6: Final answer
    x = 6,175.88

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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.