Home / 3,871,878.78-5,342,973.25-2,152,962.39

Finding the Fourth Proportional to 3,871,878.78, 5,342,973.25 and 2,152,962.39

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Solution

The fourth proportional to 3,871,878.78, 5,342,973.25 and 2,152,962.39 is: 2,970,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,878.78 : 5,342,973.25 = 2,152,962.39 : x
  2. Step 2: Convert to fraction form
    3,871,878.78/5,342,973.25 = 2,152,962.39/x
  3. Step 3: Cross multiply
    3,871,878.78x = 5,342,973.25 × 2,152,962.39
  4. Step 4: Simplify right side
    3,871,878.78x = 11,503,220,447,261.26
  5. Step 5: Solve for x
    x = 11,503,220,447,261.26/3,871,878.78
  6. Step 6: Final answer
    x = 2,970,966.06

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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.