Home / 2,829.45-3,908.58-2,691.06

Finding the Fourth Proportional to 2,829.45, 3,908.58 and 2,691.06

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Solution

The fourth proportional to 2,829.45, 3,908.58 and 2,691.06 is: 3,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.45 : 3,908.58 = 2,691.06 : x
  2. Step 2: Convert to fraction form
    2,829.45/3,908.58 = 2,691.06/x
  3. Step 3: Cross multiply
    2,829.45x = 3,908.58 × 2,691.06
  4. Step 4: Simplify right side
    2,829.45x = 10,518,220.25
  5. Step 5: Solve for x
    x = 10,518,220.25/2,829.45
  6. Step 6: Final answer
    x = 3,717.40

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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.