Home / 3,981.53-5,972.60-1,208.45

Finding the Fourth Proportional to 3,981.53, 5,972.60 and 1,208.45

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Solution

The fourth proportional to 3,981.53, 5,972.60 and 1,208.45 is: 1,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.53 : 5,972.60 = 1,208.45 : x
  2. Step 2: Convert to fraction form
    3,981.53/5,972.60 = 1,208.45/x
  3. Step 3: Cross multiply
    3,981.53x = 5,972.60 × 1,208.45
  4. Step 4: Simplify right side
    3,981.53x = 7,217,606.42
  5. Step 5: Solve for x
    x = 7,217,606.42/3,981.53
  6. Step 6: Final answer
    x = 1,812.77

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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.