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Finding the Fourth Proportional to 5,918.76, 8,875.83 and 2,218.97

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Solution

The fourth proportional to 5,918.76, 8,875.83 and 2,218.97 is: 3,327.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.76 : 8,875.83 = 2,218.97 : x
  2. Step 2: Convert to fraction form
    5,918.76/8,875.83 = 2,218.97/x
  3. Step 3: Cross multiply
    5,918.76x = 8,875.83 × 2,218.97
  4. Step 4: Simplify right side
    5,918.76x = 19,695,189.40
  5. Step 5: Solve for x
    x = 19,695,189.40/5,918.76
  6. Step 6: Final answer
    x = 3,327.59

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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.