Home / 2,132.12-2,941.55-1,292.22

Finding the Fourth Proportional to 2,132.12, 2,941.55 and 1,292.22

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Solution

The fourth proportional to 2,132.12, 2,941.55 and 1,292.22 is: 1,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.12 : 2,941.55 = 1,292.22 : x
  2. Step 2: Convert to fraction form
    2,132.12/2,941.55 = 1,292.22/x
  3. Step 3: Cross multiply
    2,132.12x = 2,941.55 × 1,292.22
  4. Step 4: Simplify right side
    2,132.12x = 3,801,128.13
  5. Step 5: Solve for x
    x = 3,801,128.13/2,132.12
  6. Step 6: Final answer
    x = 1,782.79

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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.