Home / 3,871,869.03-5,343,308.72-2,129,611.89

Finding the Fourth Proportional to 3,871,869.03, 5,343,308.72 and 2,129,611.89

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Solution

The fourth proportional to 3,871,869.03, 5,343,308.72 and 2,129,611.89 is: 2,938,935.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,869.03 : 5,343,308.72 = 2,129,611.89 : x
  2. Step 2: Convert to fraction form
    3,871,869.03/5,343,308.72 = 2,129,611.89/x
  3. Step 3: Cross multiply
    3,871,869.03x = 5,343,308.72 × 2,129,611.89
  4. Step 4: Simplify right side
    3,871,869.03x = 11,379,173,759,353.26
  5. Step 5: Solve for x
    x = 11,379,173,759,353.26/3,871,869.03
  6. Step 6: Final answer
    x = 2,938,935.60

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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.