Home / 6,418.16-8,857.08-3,623.60

Finding the Fourth Proportional to 6,418.16, 8,857.08 and 3,623.60

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Solution

The fourth proportional to 6,418.16, 8,857.08 and 3,623.60 is: 5,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.16 : 8,857.08 = 3,623.60 : x
  2. Step 2: Convert to fraction form
    6,418.16/8,857.08 = 3,623.60/x
  3. Step 3: Cross multiply
    6,418.16x = 8,857.08 × 3,623.60
  4. Step 4: Simplify right side
    6,418.16x = 32,094,515.09
  5. Step 5: Solve for x
    x = 32,094,515.09/6,418.16
  6. Step 6: Final answer
    x = 5,000.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.