Home / 2,126.36-2,934.54-1,242.12

Finding the Fourth Proportional to 2,126.36, 2,934.54 and 1,242.12

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Solution

The fourth proportional to 2,126.36, 2,934.54 and 1,242.12 is: 1,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.36 : 2,934.54 = 1,242.12 : x
  2. Step 2: Convert to fraction form
    2,126.36/2,934.54 = 1,242.12/x
  3. Step 3: Cross multiply
    2,126.36x = 2,934.54 × 1,242.12
  4. Step 4: Simplify right side
    2,126.36x = 3,645,050.82
  5. Step 5: Solve for x
    x = 3,645,050.82/2,126.36
  6. Step 6: Final answer
    x = 1,714.22

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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.