Home / 3,783,919.68-5,221,931.28-2,152,285.20

Finding the Fourth Proportional to 3,783,919.68, 5,221,931.28 and 2,152,285.20

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Solution

The fourth proportional to 3,783,919.68, 5,221,931.28 and 2,152,285.20 is: 2,970,223.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783,919.68 : 5,221,931.28 = 2,152,285.20 : x
  2. Step 2: Convert to fraction form
    3,783,919.68/5,221,931.28 = 2,152,285.20/x
  3. Step 3: Cross multiply
    3,783,919.68x = 5,221,931.28 × 2,152,285.20
  4. Step 4: Simplify right side
    3,783,919.68x = 11,239,085,409,361.06
  5. Step 5: Solve for x
    x = 11,239,085,409,361.06/3,783,919.68
  6. Step 6: Final answer
    x = 2,970,223.04

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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.