Home / 4,991.10-7,486.05-2,912.28

Finding the Fourth Proportional to 4,991.10, 7,486.05 and 2,912.28

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Solution

The fourth proportional to 4,991.10, 7,486.05 and 2,912.28 is: 4,368.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.10 : 7,486.05 = 2,912.28 : x
  2. Step 2: Convert to fraction form
    4,991.10/7,486.05 = 2,912.28/x
  3. Step 3: Cross multiply
    4,991.10x = 7,486.05 × 2,912.28
  4. Step 4: Simplify right side
    4,991.10x = 21,801,473.69
  5. Step 5: Solve for x
    x = 21,801,473.69/4,991.10
  6. Step 6: Final answer
    x = 4,368.07

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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.