Home / 2,991.75-4,480.66-2,887.93

Finding the Fourth Proportional to 2,991.75, 4,480.66 and 2,887.93

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Solution

The fourth proportional to 2,991.75, 4,480.66 and 2,887.93 is: 4,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.75 : 4,480.66 = 2,887.93 : x
  2. Step 2: Convert to fraction form
    2,991.75/4,480.66 = 2,887.93/x
  3. Step 3: Cross multiply
    2,991.75x = 4,480.66 × 2,887.93
  4. Step 4: Simplify right side
    2,991.75x = 12,939,841.64
  5. Step 5: Solve for x
    x = 12,939,841.64/2,991.75
  6. Step 6: Final answer
    x = 4,325.18

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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.