Home / 2,628.66-3,627.81-1,964.36

Finding the Fourth Proportional to 2,628.66, 3,627.81 and 1,964.36

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Solution

The fourth proportional to 2,628.66, 3,627.81 and 1,964.36 is: 2,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.66 : 3,627.81 = 1,964.36 : x
  2. Step 2: Convert to fraction form
    2,628.66/3,627.81 = 1,964.36/x
  3. Step 3: Cross multiply
    2,628.66x = 3,627.81 × 1,964.36
  4. Step 4: Simplify right side
    2,628.66x = 7,126,333.92
  5. Step 5: Solve for x
    x = 7,126,333.92/2,628.66
  6. Step 6: Final answer
    x = 2,711.01

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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.