Home / 3,987,128.20-5,502,187.84-2,268,245.04

Finding the Fourth Proportional to 3,987,128.20, 5,502,187.84 and 2,268,245.04

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Solution

The fourth proportional to 3,987,128.20, 5,502,187.84 and 2,268,245.04 is: 3,130,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,128.20 : 5,502,187.84 = 2,268,245.04 : x
  2. Step 2: Convert to fraction form
    3,987,128.20/5,502,187.84 = 2,268,245.04/x
  3. Step 3: Cross multiply
    3,987,128.20x = 5,502,187.84 × 2,268,245.04
  4. Step 4: Simplify right side
    3,987,128.20x = 12,480,310,277,228.31
  5. Step 5: Solve for x
    x = 12,480,310,277,228.31/3,987,128.20
  6. Step 6: Final answer
    x = 3,130,150.24

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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.