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Finding the Fourth Proportional to 5,918.88, 8,878.30 and 3,323.64

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Solution

The fourth proportional to 5,918.88, 8,878.30 and 3,323.64 is: 4,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.88 : 8,878.30 = 3,323.64 : x
  2. Step 2: Convert to fraction form
    5,918.88/8,878.30 = 3,323.64/x
  3. Step 3: Cross multiply
    5,918.88x = 8,878.30 × 3,323.64
  4. Step 4: Simplify right side
    5,918.88x = 29,508,273.01
  5. Step 5: Solve for x
    x = 29,508,273.01/5,918.88
  6. Step 6: Final answer
    x = 4,985.45

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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.