Home / 3,153.12-4,726.08-2,788.80

Finding the Fourth Proportional to 3,153.12, 4,726.08 and 2,788.80

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Solution

The fourth proportional to 3,153.12, 4,726.08 and 2,788.80 is: 4,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.12 : 4,726.08 = 2,788.80 : x
  2. Step 2: Convert to fraction form
    3,153.12/4,726.08 = 2,788.80/x
  3. Step 3: Cross multiply
    3,153.12x = 4,726.08 × 2,788.80
  4. Step 4: Simplify right side
    3,153.12x = 13,180,091.90
  5. Step 5: Solve for x
    x = 13,180,091.90/3,153.12
  6. Step 6: Final answer
    x = 4,180.02

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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.