Home / 5,618.12-8,429.60-3,018.02

Finding the Fourth Proportional to 5,618.12, 8,429.60 and 3,018.02

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Solution

The fourth proportional to 5,618.12, 8,429.60 and 3,018.02 is: 4,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.12 : 8,429.60 = 3,018.02 : x
  2. Step 2: Convert to fraction form
    5,618.12/8,429.60 = 3,018.02/x
  3. Step 3: Cross multiply
    5,618.12x = 8,429.60 × 3,018.02
  4. Step 4: Simplify right side
    5,618.12x = 25,440,644.15
  5. Step 5: Solve for x
    x = 25,440,644.15/5,618.12
  6. Step 6: Final answer
    x = 4,528.32

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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.