Home / 2,829.87-3,905.69-1,634.92

Finding the Fourth Proportional to 2,829.87, 3,905.69 and 1,634.92

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Solution

The fourth proportional to 2,829.87, 3,905.69 and 1,634.92 is: 2,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.87 : 3,905.69 = 1,634.92 : x
  2. Step 2: Convert to fraction form
    2,829.87/3,905.69 = 1,634.92/x
  3. Step 3: Cross multiply
    2,829.87x = 3,905.69 × 1,634.92
  4. Step 4: Simplify right side
    2,829.87x = 6,385,472.76
  5. Step 5: Solve for x
    x = 6,385,472.76/2,829.87
  6. Step 6: Final answer
    x = 2,256.45

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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.