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Finding the Fourth Proportional to 5,810.39, 8,018.39 and 3,157.80

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Solution

The fourth proportional to 5,810.39, 8,018.39 and 3,157.80 is: 4,357.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.39 : 8,018.39 = 3,157.80 : x
  2. Step 2: Convert to fraction form
    5,810.39/8,018.39 = 3,157.80/x
  3. Step 3: Cross multiply
    5,810.39x = 8,018.39 × 3,157.80
  4. Step 4: Simplify right side
    5,810.39x = 25,320,416.06
  5. Step 5: Solve for x
    x = 25,320,416.06/5,810.39
  6. Step 6: Final answer
    x = 4,357.79

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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.