Home / 3,673.40-5,510.78-1,208.36

Finding the Fourth Proportional to 3,673.40, 5,510.78 and 1,208.36

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Solution

The fourth proportional to 3,673.40, 5,510.78 and 1,208.36 is: 1,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.40 : 5,510.78 = 1,208.36 : x
  2. Step 2: Convert to fraction form
    3,673.40/5,510.78 = 1,208.36/x
  3. Step 3: Cross multiply
    3,673.40x = 5,510.78 × 1,208.36
  4. Step 4: Simplify right side
    3,673.40x = 6,659,006.12
  5. Step 5: Solve for x
    x = 6,659,006.12/3,673.40
  6. Step 6: Final answer
    x = 1,812.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.