Home / 2,717.16-3,742.68-2,126.64

Finding the Fourth Proportional to 2,717.16, 3,742.68 and 2,126.64

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Solution

The fourth proportional to 2,717.16, 3,742.68 and 2,126.64 is: 2,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.16 : 3,742.68 = 2,126.64 : x
  2. Step 2: Convert to fraction form
    2,717.16/3,742.68 = 2,126.64/x
  3. Step 3: Cross multiply
    2,717.16x = 3,742.68 × 2,126.64
  4. Step 4: Simplify right side
    2,717.16x = 7,959,333.00
  5. Step 5: Solve for x
    x = 7,959,333.00/2,717.16
  6. Step 6: Final answer
    x = 2,929.28

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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.