Home / 3,005.88-4,475.51-2,991.30

Finding the Fourth Proportional to 3,005.88, 4,475.51 and 2,991.30

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Solution

The fourth proportional to 3,005.88, 4,475.51 and 2,991.30 is: 4,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.88 : 4,475.51 = 2,991.30 : x
  2. Step 2: Convert to fraction form
    3,005.88/4,475.51 = 2,991.30/x
  3. Step 3: Cross multiply
    3,005.88x = 4,475.51 × 2,991.30
  4. Step 4: Simplify right side
    3,005.88x = 13,387,578.11
  5. Step 5: Solve for x
    x = 13,387,578.11/3,005.88
  6. Step 6: Final answer
    x = 4,453.80

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1.5x scale

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.