Home / 1,991.17-2,744.85-1,675.27

Finding the Fourth Proportional to 1,991.17, 2,744.85 and 1,675.27

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Solution

The fourth proportional to 1,991.17, 2,744.85 and 1,675.27 is: 2,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991.17 : 2,744.85 = 1,675.27 : x
  2. Step 2: Convert to fraction form
    1,991.17/2,744.85 = 1,675.27/x
  3. Step 3: Cross multiply
    1,991.17x = 2,744.85 × 1,675.27
  4. Step 4: Simplify right side
    1,991.17x = 4,598,364.86
  5. Step 5: Solve for x
    x = 4,598,364.86/1,991.17
  6. Step 6: Final answer
    x = 2,309.38

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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.