Home / 2,126.07-2,934.45-1,242

Finding the Fourth Proportional to 2,126.07, 2,934.45 and 1,242

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Solution

The fourth proportional to 2,126.07, 2,934.45 and 1,242 is: 1,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.07 : 2,934.45 = 1,242 : x
  2. Step 2: Convert to fraction form
    2,126.07/2,934.45 = 1,242/x
  3. Step 3: Cross multiply
    2,126.07x = 2,934.45 × 1,242
  4. Step 4: Simplify right side
    2,126.07x = 3,644,586.90
  5. Step 5: Solve for x
    x = 3,644,586.90/2,126.07
  6. Step 6: Final answer
    x = 1,714.24

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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.