Home / 2,292.53-3,161.61-1,939.21

Finding the Fourth Proportional to 2,292.53, 3,161.61 and 1,939.21

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Solution

The fourth proportional to 2,292.53, 3,161.61 and 1,939.21 is: 2,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.53 : 3,161.61 = 1,939.21 : x
  2. Step 2: Convert to fraction form
    2,292.53/3,161.61 = 1,939.21/x
  3. Step 3: Cross multiply
    2,292.53x = 3,161.61 × 1,939.21
  4. Step 4: Simplify right side
    2,292.53x = 6,131,017.82
  5. Step 5: Solve for x
    x = 6,131,017.82/2,292.53
  6. Step 6: Final answer
    x = 2,674.35

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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.