Home / 3,859,000-5,325,420-2,140,383.68

Finding the Fourth Proportional to 3,859,000, 5,325,420 and 2,140,383.68

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Solution

The fourth proportional to 3,859,000, 5,325,420 and 2,140,383.68 is: 2,953,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859,000 : 5,325,420 = 2,140,383.68 : x
  2. Step 2: Convert to fraction form
    3,859,000/5,325,420 = 2,140,383.68/x
  3. Step 3: Cross multiply
    3,859,000x = 5,325,420 × 2,140,383.68
  4. Step 4: Simplify right side
    3,859,000x = 11,398,442,057,145.60
  5. Step 5: Solve for x
    x = 11,398,442,057,145.60/3,859,000
  6. Step 6: Final answer
    x = 2,953,729.48

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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.