Home / 2,131.24-2,941.23-1,292.08

Finding the Fourth Proportional to 2,131.24, 2,941.23 and 1,292.08

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Solution

The fourth proportional to 2,131.24, 2,941.23 and 1,292.08 is: 1,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.24 : 2,941.23 = 1,292.08 : x
  2. Step 2: Convert to fraction form
    2,131.24/2,941.23 = 1,292.08/x
  3. Step 3: Cross multiply
    2,131.24x = 2,941.23 × 1,292.08
  4. Step 4: Simplify right side
    2,131.24x = 3,800,304.46
  5. Step 5: Solve for x
    x = 3,800,304.46/2,131.24
  6. Step 6: Final answer
    x = 1,783.14

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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.