Home / 2,126.72-2,934.87-1,195.22

Finding the Fourth Proportional to 2,126.72, 2,934.87 and 1,195.22

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Solution

The fourth proportional to 2,126.72, 2,934.87 and 1,195.22 is: 1,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.72 : 2,934.87 = 1,195.22 : x
  2. Step 2: Convert to fraction form
    2,126.72/2,934.87 = 1,195.22/x
  3. Step 3: Cross multiply
    2,126.72x = 2,934.87 × 1,195.22
  4. Step 4: Simplify right side
    2,126.72x = 3,507,815.32
  5. Step 5: Solve for x
    x = 3,507,815.32/2,126.72
  6. Step 6: Final answer
    x = 1,649.40

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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.