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Finding the Fourth Proportional to 5,607.08, 7,736.14 and 3,618.80

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Solution

The fourth proportional to 5,607.08, 7,736.14 and 3,618.80 is: 4,992.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.08 : 7,736.14 = 3,618.80 : x
  2. Step 2: Convert to fraction form
    5,607.08/7,736.14 = 3,618.80/x
  3. Step 3: Cross multiply
    5,607.08x = 7,736.14 × 3,618.80
  4. Step 4: Simplify right side
    5,607.08x = 27,995,543.43
  5. Step 5: Solve for x
    x = 27,995,543.43/5,607.08
  6. Step 6: Final answer
    x = 4,992.89

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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.