Home / 3,871,945.40-5,343,064.89-2,153,028.92

Finding the Fourth Proportional to 3,871,945.40, 5,343,064.89 and 2,153,028.92

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Solution

The fourth proportional to 3,871,945.40, 5,343,064.89 and 2,153,028.92 is: 2,971,057.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,945.40 : 5,343,064.89 = 2,153,028.92 : x
  2. Step 2: Convert to fraction form
    3,871,945.40/5,343,064.89 = 2,153,028.92/x
  3. Step 3: Cross multiply
    3,871,945.40x = 5,343,064.89 × 2,153,028.92
  4. Step 4: Simplify right side
    3,871,945.40x = 11,503,773,229,606.62
  5. Step 5: Solve for x
    x = 11,503,773,229,606.62/3,871,945.40
  6. Step 6: Final answer
    x = 2,971,057.71

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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.