Home / 5,418.08-8,091.54-4,671.78

Finding the Fourth Proportional to 5,418.08, 8,091.54 and 4,671.78

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Solution

The fourth proportional to 5,418.08, 8,091.54 and 4,671.78 is: 6,977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.08 : 8,091.54 = 4,671.78 : x
  2. Step 2: Convert to fraction form
    5,418.08/8,091.54 = 4,671.78/x
  3. Step 3: Cross multiply
    5,418.08x = 8,091.54 × 4,671.78
  4. Step 4: Simplify right side
    5,418.08x = 37,801,894.74
  5. Step 5: Solve for x
    x = 37,801,894.74/5,418.08
  6. Step 6: Final answer
    x = 6,977.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.