Home / 2,991.13-4,126.75-1,796.48

Finding the Fourth Proportional to 2,991.13, 4,126.75 and 1,796.48

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Solution

The fourth proportional to 2,991.13, 4,126.75 and 1,796.48 is: 2,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.13 : 4,126.75 = 1,796.48 : x
  2. Step 2: Convert to fraction form
    2,991.13/4,126.75 = 1,796.48/x
  3. Step 3: Cross multiply
    2,991.13x = 4,126.75 × 1,796.48
  4. Step 4: Simplify right side
    2,991.13x = 7,413,614.19
  5. Step 5: Solve for x
    x = 7,413,614.19/2,991.13
  6. Step 6: Final answer
    x = 2,478.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.