Home / 3,714.79-5,126.07-2,142.58

Finding the Fourth Proportional to 3,714.79, 5,126.07 and 2,142.58

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Solution

The fourth proportional to 3,714.79, 5,126.07 and 2,142.58 is: 2,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.79 : 5,126.07 = 2,142.58 : x
  2. Step 2: Convert to fraction form
    3,714.79/5,126.07 = 2,142.58/x
  3. Step 3: Cross multiply
    3,714.79x = 5,126.07 × 2,142.58
  4. Step 4: Simplify right side
    3,714.79x = 10,983,015.06
  5. Step 5: Solve for x
    x = 10,983,015.06/3,714.79
  6. Step 6: Final answer
    x = 2,956.56

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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.