Home / 3,660.36-5,492.04-1,320.68

Finding the Fourth Proportional to 3,660.36, 5,492.04 and 1,320.68

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Solution

The fourth proportional to 3,660.36, 5,492.04 and 1,320.68 is: 1,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.36 : 5,492.04 = 1,320.68 : x
  2. Step 2: Convert to fraction form
    3,660.36/5,492.04 = 1,320.68/x
  3. Step 3: Cross multiply
    3,660.36x = 5,492.04 × 1,320.68
  4. Step 4: Simplify right side
    3,660.36x = 7,253,227.39
  5. Step 5: Solve for x
    x = 7,253,227.39/3,660.36
  6. Step 6: Final answer
    x = 1,981.56

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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.